Saʽd ibn ʽUbadah ibn Dulaym al-Ansari al-Khazraji () (d. 637) was the chief of the Sa'ida clan of the Khazraj tribe in Medina in the early seventh century. He was later recognised as the chief of the whole Khazraj tribe, and then of all the Ansar. He was a prominent companion of the Islamic prophet Muhammad and made an abortive attempt to nominate himself as caliph of Islam after Muhammad's death.

Family He was the son of 'Ubadah ibn Dulaym, chief of the Sa'ida clan,Muhammad ibn Ishaq. Sirat Rasul Allah. Translated by Guillaume, A. (1955). The Life of Muhammad. Oxford: Oxford University Press.Muhammad ibn Saad. Kitab al-Tabaqat al-Kabir vol. 3. Translated by Bewley, A. (2013). The Companions of Badr. London: Ta-Ha Publishers.Muhammad ibn Umar al-Waqidi. Kitab al-Maghazi. Translated by Faizer, R., Ismail, A., & Tayob, A. K. (2011). The Life of Muhammad. London & New York: Routledge. and of Amra al-Thalitha bint Masud, who was from the Najjar clan of the Khazraj. He had two sisters, Mandwas and Layla.Muhammad ibn Saad. Kitab al-Tabaqat al-Kabir vol. 8. Translated by Bewley, A. (1995). The Women of Madina. London: Ta-Ha Publishers.

His first wife, Fukayha bint Ubayd ibn Dulaym, was his agnatic cousin. They had three children: Qays, Umama and Sadus. His second wife, Ghaziya bint Sa'd, was also from the Sa'ida clan. Their sons were Sa'id, Muhammad and Abdulrahman.

Early life Described as physically "very hairy,” Sa'd was reckoned one of the "perfect" Arabs because he was good at archery and swimming and could write in Arabic.

His generosity was widely acknowledged. The Khazraj said of him: "He is our master and the son of our master. They used to provide food during the droughts, to transport the weary, to welcome guests, to give during disasters and to protect the community." His son Qays said that he underwrote the debts of "the most distant relatives" in addition to helping poor people and feeding the community during famines. A Bedouin testified, "You possess the highest and most noble character. You are not censured even by those who have no knowledge of your position." Sa'd used to stand on his fortress, calling, "Whoever likes fat or meat should come to Sa'd ibn Ubadah."

He was also known for his hot temperMuhammad ibn Jarir al-Tabari. Tarikh al-Rusul wa'l-Muluk. Translated by Fishbein, M. (1997). Volume 8: The Victory of Islam. Albany: State University of New York Press. and for his tribal pride.Muslim 37:6673. He used to pray: "O God, give me praise and glory. I can't have glory without action, and I can't act without money. O God, I need more than a little money to put myself right and put right with it." He was annoyed when Muhammad once described the Abdulashhal clan as the best of the Ansar, followed by the Najjar, the Harith, the Sa'ida and then all the rest. He asked, "Are we only fourth?" and had to be dissuaded from confronting Muhammad about it to his face.Muslim 31:6110.

Sa'd had commercial relationships with Mecca. He guaranteed the safety of the merchants of Jubayr ibn Mut'im and Harith ibn Harb while they were in the territory of Medina.

Conversion to Islam Sa'd ibn Ubadah converted to Islam at an early date, in the year before Muhammad's arrival in Medina, and consequently he broke all the idols of the Sa'ida clan.

Second Pledge of Aqaba Sa'd was among the 75 converts from Medina who took the Second Pledge at Aqaba in July 622. Muhammad selected him as one of the twelve leaders who would "take charge of their people's affairs."

When Quraysh realised that war had been declared on them, they pursued the pledge-takers, who were already on the road home to Medina. They captured Sa'd, tied his hands to his neck and brought him back to Mecca, dragging him by the hair and beating him. Suhayl ibn Amr slapped his face. Finally Abu'l-Bakhtari ibn HishamAbdulmalik ibn Hisham. Notes to Ibn Ishaq's Sirat Rasul Allah. Translated by Guillaume, A. (1955). The Life of Muhammad. Oxford: Oxford University Press. took pity on him and asked: "You poor devil, doesn't any Quraysh owe you protection?" Sa'd then remembered to call out the names of Jubayr ibn Mutim and Al-Harith ibn Harb. They came from the Kaaba and told the captors to release him; so Sa'd went home.

The Hijrah When Muhammad arrived in Medina, Sa'd was among those who invited him to stay in their homes at their expense. But Muhammad said that his camel was under God's orders and she should decide where he would stay.

Sa'd was thought a pious man. Every day he sent a bowl of meat stew or clarified butter or milk to Muhammad, who took it with him as he visited each of his wives in turn. From March 624 until May 627 Sa'd hosted al-Miqdad ibn Amr and Khabbab ibn al-Aratt in his home. At the Battle of the Ditch he supplied the army with a load of dates.

Relationship with Muhammad Soon after Muhammad's arrival in Medina, Sa'd fell sick. He received a visit from Muhammad, who was red-faced with anger, and his adoptive grandson Usama. Muhammad explained to Sa'd that Abdullah ibn Ubayy had rejected Islam and forbidden him to discuss it in Abdullah's house. Sa'd advised Muhammad: "Don't be hard on him; for God sent you to us as we were making a diadem to crown him, and he thinks that you have robbed him of a kingdom."Muslim 19:4431.

On a different condolence-visit, Muhammad was accompanied by Abd al-Rahman ibn Awf, Sa'd ibn Abi Waqqas and Abdullah ibn Masud. Sa'd was unconscious when his visitors arrived, and Muhammad asked if he had died. Although he had not, Muhammad wept, and his friends wept with him. Muhammad told them that silent tears were permitted but that Allah might punish them for loud wailing.Muslim 4:2010. Later Muhammad heard that Sa'd was better, so he asked the assembly who would like to go to visit. More than ten Muslims stood up with him, "and we had neither shoes with us, nor socks, nor caps, nor shirts." They walked "on the barren land" in the scorching heat of Medina until they reached Sa'd's house.Muslim 4:2011.

On another occasion, Sa'd was sitting at home when Muhammad knocked at the door, calling, "Peace be with you!" Sa'd kept silent. Muhammad called a second and a third time, then decided that Sa'd must be out. As he was leaving, Sa'd ran up to call him back, explaining: "I did hear you, but I wanted to have a lot of your peace for me and my family."Bukhari, Mufrad 43:1073.

Muhammad said, on receiving from him a gift of dates and ten camels for slaughter, "What a good man Sa'd ibn Ubadah is! The best of the people in Islam are those who were the best in the Jahiliya when they understand the religion." On the way to the Farewell Pilgrimage, Sa'd heard that Abu Bakr had lost his camel. He and his son Qays came at once to Muhammad to give him a new camel laden with provisions. Muhammad tried to refuse the gift, for the lost camel had been found, but Sa'd told him: "What you take from our wealth is more precious to us than what you do not take."

Questions about Islam Sa'd's mother, Amra, died while he was away at Dumat al-Jandal in 626. When the army returned to Medina, Muhammad prayed over her grave. Sa'd asked about a vow that Amra had been unable to keep before she died, and Muhammad said, "Fulfil it for her."Bukhari 9:86:90. So Sa'd gave away his garden al-Mikhraf as charity on her behalf. Muhammad said that the best form of charity was "making water flow," and Sa'd donated water for public drinking to the mosque.

Sa'd once asked Muhammad: "Tell me, if a man finds his wife with another man, should he kill him?" Muhammad replied, "No."Muslim 9:3569. Sa'd asked if he should wait until he had four witnesses, and Muhammad said, "Yes."Muslim 9:3570.Muslim 9:3571. "By no means!" exclaimed Sa'd. "I swear, I would hurry to strike him with my sword before then, and not with the flat side!" Muhammad told the assembly: "Listen to what your chief says. Are you surprised at Sa'd's jealousy for his honour? I am more jealous for my honour than he is, and God is more jealous than I am. Because of his jealousy God has prohibited abomination, both open and secret. No person is more jealous than God; and no person is fonder of accepting an excuse than God, on account of which he has sent messengers; and no one is fonder of praise than God, on account of which he has promised Paradise."Muslim 9:3572.

Internal politics of Medina Community relationships In the early period after Muhammad's arrival, Sa'd urged the Jews of Medina to accept Islam. "Fear God," he said, "for you know right well that [Muhammad] is God's Messenger, of whom you used to speak to us before his mission and describe him to us." The Jews replied: "We never said that to you, and God has sent down no book since Moses nor sent an evangelist or warner after him."

Abdullah ibn Ubayy, chief of the Awf clan and unofficially chief of the Khazraj tribe, lost status in Medina after the Battle of Uhud in 625. Sa'd ibn Ubadah then came to be regarded as the most important Khazraj chief. After the death of Sa'd ibn Mu'adh, the Aws chief, in May 627, Sa'd ibn Ubadah was recognised as the leader of all the Ansar.Watt, W. M. (1956). Muhammad at Medina, pp. 168, 181. Oxford: Oxford University Press.

Saad's son Qays was among 300 men who were sent under Abu Ubayda ibn al-Jarrah against the Juhayna tribe in October 629. There was no food and the men were hungry. Qays began to buy camels on his father's credit to slaughter for the army. After three days of this, Abu Ubayda stopped him, saying that he must not spend his father's money without permission. Umar supported Abu Ubayda's argument, and Qays was "most rude" to Umar. When Sa'd heard about the army's hunger, he said: "If I know Qays, he will slaughter for the people!" When Qays returned and told him the story of how Abu Ubayda had halted his spending, Sa'd immediately gave his son four date-orchards so that in future he would have money that was legally his own. Then he paid off the debts.

Sa'd was one of those who laid the corpse of Abdullah ibn Ubayy at his burial.

The accusation against Aisha Abdullah ibn Ubayy encouraged rumours that Muhammad's wife Aisha had committed adultery. Muhammad addressed the Muslims in the mosque about it: "Why do certain men lie about my family?" An Aws leader, Usayd ibn Hudayr, replied: "If they are of Aws let us rid you of them; and if they are of the Khazraj give us your orders, for they ought to have their heads cut off." Sa'd ibn Ubadah stood up and retorted: "By Allah, you lie. They shall not be beheaded. You would not have said this if you had not known that they were of Khazraj. If they had been your own people, you would not have said it."

Sa'd's words triggered a loud quarrel in the mosque. Usayd ibn Hudayr retorted, "Liar yourself! We would certainly kill him, despite your efforts. You are a hypocrite who defends hypocrites! By God, if the Messenger desired the head of my closest relative, I would bring it to him before he could stand up. But I don’t know what the Messenger wants." Sa'ad told him: "You Aws insist on treating us with the resentment that was between us in the Jahiliya. By God, there is no need to remember it. Surely you know who was victorious in it. Indeed, God extinguished all of that with Islam." Usayd stood up and said, "You saw our stand at the Battle of Bu'ath!"

At this Sa'd was so angry that he called out: "O Sons of Khazraj!" and all the Khazraj came to stand on his side. Sa'd ibn Mu'adh called out, "O Sons of Aws!" and the Aws went to stand next to him. With the two tribes lined up, a Khazraj man unsheathed a sword, announcing, "I will cut off the head of the hypocrite in his hideout!" Usayd met him and said: "Drop it! A weapon is brought out only by the command of Allah's Messenger. If we knew that the Messenger had such a desire or command, then we would do this faster than you." Muhammad called for silence, stepped down from the pulpit and managed to calm them down.