[Machine] Abu Sufyan ibn al-Harith ibn Abd al-Muttalib ibn Hashim was the brother of the Messenger of Allah ﷺ through breastfeeding, and his cousin nursed him. Halimah nursed him for a few days, and he became familiar with the Messenger of Allah ﷺ. When the Messenger of Allah ﷺ was sent as a Prophet, Abu Sufyan opposed him and criticized him, and his companions did the same. He remained angry with the Messenger of Allah ﷺ for twenty years, never leaving a place where the Quraysh went to fight against the Messenger of Allah ﷺ. However, in the year of the Conquest, Allah instilled Islam in his heart when the qualities of the Messenger of Allah ﷺ were mentioned to him in Makkah. The Messenger of Allah ﷺ accepted him as a Muslim before he descended from Abu Awa. Abu Sufyan, his son Ja'far, and he accompanied the Messenger of Allah ﷺ and witnessed the Conquest of Makkah and the Battle of Hunayn. Abu Sufyan said, "When we encountered the enemy at Hunayn, I charged on my horse with my sword in my hand, swearing by Allah that I desired death except for him, while he was looking at me. Abbas called out, 'O Messenger of Allah, this is your brother and your cousin, Abu Sufyan ibn al-Harith. Accept his apology.' The Messenger of Allah ﷺ said, 'I have forgiven him; may Allah forgive him for all the enmity he showed towards me.' Then, he turned towards me and said, 'O my brother, by my life,' and I kissed his foot in the stirrup." It is said that Abu Sufyan passed away in Madinah after his brother Nawfal ibn al-Harith, four months and thirteen nights after him. Others say he passed away in the twentieth year. Umar ibn al-Khattab led the funeral prayer for him, and he was buried in the cemetery of al-Baqi in the grave that Aqil ibn Abi Talib had dug for himself three days before he died. "I have mentioned the Islam of my father Sufyan in the Conquest of Makkah, as previously mentioned." Al-Dhahabi remained silent about him in his summary.  

أَبُو سُفْيَانَ بْنُ الْحَارِثِ بْنِ عَبْدِ الْمُطَّلِبِ بْنِ هَاشِمٍ وَكَانَ أَخَا رَسُولِ اللَّهِ ﷺ مِنَ الرَّضَاعَةِ وَابْنَ عَمِّهِ أَرْضَعَتْهُ حَلِيمَةُ أَيَّامًا فَكَانَ يَأْلَفُ رَسُولَ اللَّهِ ﷺ فَلَمَّا بَعَثَ رَسُولُ اللَّهِ ﷺ عَادَاهُ وَهَجَاهُ وَهَجَا أَصْحَابَهُ فَمَكَثَ عِشْرِينَ سَنَةً مُغَاضِبًا لِرَسُولِ اللَّهِ ﷺ لَا يَتَخَلَّفُ عَنْ مَوْضِعٍ تَسِيرُ فِيهِ قُرَيْشٌ لِقِتَالِ رَسُولِ اللَّهِ ﷺ فَلَمَّا ذُكِرَ شُخُوصُ رَسُولِ اللَّهِ ﷺ إِلَى مَكَّةَ عَامَ الْفَتْحِ أَلْقَى اللَّهُ ﷻ فِي قَلْبِهِ الْإِسْلَامَ فَتَلَقَّى رَسُولَ اللَّهِ ﷺ قَبْلَ نُزُولِهِ الْأَبْوَاءَ فَأَسْلَمَ هُوَ وَابْنُهُ جَعْفَرٌ وَخَرَجَ مَعَ رَسُولِ اللَّهِ ﷺ فَشَهِدَ فَتْحَ مَكَّةَ وَحُنَيْنًا قَالَ أَبُو سُفْيَانَ فَلَمَّا لَقِينَا الْعَدُوَّ بِحُنَيْنٍ اقْتَحَمْتُ عَنْ فَرَسِي وَبِيَدِي السَّيْفُ صَلْتًا وَاللَّهُ يَعْلَمُ أَنِّي أُرِيدُ الْمَوْتَ دُونَهُ وَهُوَ يَنْظُرُ إِلَيَّ فَقَالَ الْعَبَّاسُ يَا رَسُولَ اللَّهِ هَذَا أَخُوكَ وَابْنُ عَمِّكَ أَبُو سُفْيَانَ بْنُ الْحَارِثِ فَارْضَ عَنْهُ قَالَ «قَدْ فَعَلْتُ يَغْفِرُ اللَّهُ لَهُ كُلَّ عَدَاوَةٍ عَادَانِيهَا» ثُمَّ الْتَفَتَ إِلَيَّ فَقَالَ «أَخِي لَعَمْرِي» فَقَبَّلْتُ رِجْلَهُ فِي الرِّكَابِ قَالُوا وَمَاتَ أَبُو سُفْيَانَ بْنُ الْحَارِثِ بِالْمَدِينَةِ بَعْدَ أَخِيهِ نَوْفَلِ بْنِ الْحَارِثِ بِأَرْبَعَةَ أَشْهُرٍ إِلَّا ثَلَاثَةَ عَشَرَ لَيْلَةً وَيُقَالُ مَاتَ سَنَةَ عِشْرِينَ وَصَلَّى عَلَيْهِ عُمَرُ بْنُ الْخَطَّابِ وَقُبِرَ فِي دَارِ عَقِيلِ بْنِ أَبِي طَالِبٍ بِالْبَقِيعِ وَهُوَ الَّذِي حَفَرَ قَبْرَ نَفْسِهِ قَبْلَ أَنْ يَمُوتَ بِثَلَاثَةِ أَيَّامٍ «قَدْ ذَكَرْتُ إِسْلَامَ أَبِي سُفْيَانَ فِي فَتْحِ مَكَّةَ فِيمَا تَقَدَّمَ» سكت عنه الذهبي في التلخيص