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In 12 BH (610 CE), Abu Bakr had initially engaged his daughter Aisha to Jubayr ibn Mut'im, but when Jubayr's father Mut`im ibn `Uday was informed that Abu Bakr had adopted Islam and rejected polytheism, Mut`im no longer wished his son to marry Aisha.
He was especially known for his knowledge of genealogy. He was the owner of Wahshy ibn Harb, the slave who killed Hamza ibn 'Abdul Muttalib. He adopted Islam in the period between theHudaibiah Treaty and the Conquest of Mecca.
- Abbott, Nabia (1942). Aishah The Beloved of Muhammad. University of Chicago Press. p. 1.
- Muhammad ibn Saad, Tabaqat vol. 8. Translated by Bewley, A. (1995). The Women of Madina, p. 55. London: Ta-Ha Publishers. "Aisha was born at the beginning of the fourth year of prophethood," i.e., the year 613-614 C.E.
- "‘A’isha was eighteen years of age at the time when the Holy Prophet (peace and blessings of Allah be upon him) died and she remained a widow for forty-eight years till she died at the age of sixty-seven. She saw the rules of four caliphs in her lifetime. She died in Ramadan 58 AH during the caliphate of Mu‘awiya…" (Source: Sunan Nasa'i: English translation with Arabic text, compiled by Imam Abu Abd-ur-Rahman Ahmad Nasa'i, rendered into English by Muhammad Iqbal Siddiqui [Lahore: Kazi Publications; first edition, 1994], Volume 1, p. 108)
- Spellberg, p. 3.
Marriage to Muhammad
The idea to match Aisha with Muhammad was suggested by Khawlah bint Hakim. After this, the previous agreement regarding the marriage of Aisha with Jubayr ibn Mut'im was put aside by common consent. Abu Bakr was uncertain at first "as to the propriety or even legality of marrying his daughter to the Prophet." British historian William Montgomery Watt suggests that Muhammad hoped to strengthen his ties with Abu Bakr; the strengthening of ties commonly served as a basis for marriage in Arabian culture.
- Ahmed, Lelia (1992). Women and Gender in Islam: Historical Roots of a Modern Debate. Yale University Press.
- Abbott, Nabia (1942). The Beloved of Muhammad
- Al-islam.org 
-  Norwegian link
- Rijal: narrators of the Muwatta of Imam Muhammad
- Sahih al-Bukhari, 8:73:13