However, when Muhammad entered Mecca in 630, he was among the first to submit and was given a stake in the nascent Muslim state, playing a role at the Battle of Hunayn and the subsequent destruction of the polytheistic sanctuary of al-Lat in Ta'if.
[1] Two years later, he led the attempted siege of Medina, but was defeated by the Muslim defenders at the Battle of the Trench, and his morale may have taken a blow at this failure.
[1] When Muhammad conquered Mecca in 630, Abu Sufyan played a key role in the city's surrender, being among the first Qurayshi leaders to submit and guaranteeing protection for his partisans.
[1] He fought alongside the Muslims at the Battle of Hunayn against the Banu Thaqif of Ta'if, traditional rivals of Mecca, and the latter's tribal backers from the Hawazin confederation.
[1] During this battle, which ended in a decisive Muslim victory, he lost an eye, and was rewarded a relatively high percentage of the spoils to reconcile his heart.
[4][5] Because of his past trade relations with Ta'if, where he also owned property and had kinsmen, Abu Sufyan played a leading role in the dismantlement of the pagan sanctuary of al-Lat in the city.
[6] According to the historian Wilferd Madelung, Abu Sufyan, by dint of his chieftainship of the Banu Abd Shams and the generosity he had received from Muhammad, was duty-bound by a tribal code of honor to offer Ali such support, as doing otherwise "would have been shameful".
[6] Ali, however, refused his support, citing Abu Sufyan's late conversion to Islam and the potential backlash from the Muslim community should he accept his backing.
[7] Western historians generally dismiss this episode as propaganda by the Muslim traditional sources, which were hostile to the Umayyads,[8] the branch of the Banu Abd Shams to which Abu Sufyan belonged and which ultimately became the ruling family of the Caliphate in 661 until 750.
Abu Bakr ordered the Muslim conquest of the Levant, in which he gave the Banu Abd Shams a stake, despite their early opposition to him, which he sought to allay.
Umar's successor, Uthman (r. 644–656), shared descent with Abu Sufyan from Umayya ibn Abd Shams and was known to show special favor to his kinsmen.