For Mecca was conquered, by universal agreement, in Ramadan of 8 AH, and the Prophet—may Allah bless him and grant him peace—died, also by universal agreement, in Rabi al-Awwal of 11 AH. Everyone had been an unbeliever before coming to believe in what the Prophet—may Allah bless him and grant him peace—had brought. Among them were some who had been more fiercely hostile to the Prophet—may Allah bless him and grant him peace—[than Muāwiya] (1), but who then embraced Islam and proved deeply sincere in it. One such person was Abū Sufyān ibn al-Hārith ibn Abd al-Muttalib, the paternal cousin of the Messenger of Allah—may Allah bless him and grant him peace. Before Islam, he was among those who most intensely hated the Prophet—may Allah bless him and grant him peace—(2) and lampooned him.
As for Muāwiya—may Allah be pleased with him—his father was fiercely hostile to the Prophet—may Allah bless him and grant him peace—as was his mother until she embraced Islam. She then said:
“By Allah, O Messenger of Allah, there was no household on the face (3) of the earth whose humiliation I desired more than that of your household; but today there is no household on the face of the earth whose honor I desire more than that of your household.”
Reported by al-Bukhārī (4).
It was concerning them that Allah Most High revealed:
“It may be that Allah will bring about affection between you and those of them with whom you were at enmity. Allah is All-Powerful, and Allah is All-Forgiving, Most Merciful.”
Sūrat al-Mumtahana. Allah indeed brought about affection between the Prophet—may Allah bless him and grant him peace—and those who had been hostile to him, such as Abū Sufyān, Hind, and others. Allah has the power to replace enmity with affection. He forgave them when they repented of idolatry, and He is merciful to the believers—and they had become believers.