Hasan Basri reported,

By Allah, Hasan bin Ali met Muawiya with battalions like mountains. Amr bin As said, "I see battalions that will not turn back until they kill their counterparts."Muawiya, who was by Allah the better of the two men, replied to him, "Amr, if these kill those, and those kill these, who will be left to handle the people's affairs, who will be left for their women, who will be left for their weak ones?"So he sent to him two men from Quraysh, from Banu Abd Shams, Abdul-Rahman bin Samura and Abdullah bin Amir bin Kurayz, and said, "Go to this man and present this offer to him, speak with him, and request from him."They went to him, entered upon him, spoke with him, conveyed the message, and made the request.Hasan bin Ali said to them, "We, the sons of Abdul-Muttalib, have obtained some of this wealth, and this nation has shed blood recklessly."They said, "He offers you such and such, and requests from you and asks of you."He asked, "Who will guarantee this for me?"They replied, "We will guarantee it for you."He did not ask them about anything except that they said, "We will guarantee it for you." So he made peace with him.Hasan said, "I heard Abu Bakra say, 'I saw the Messenger of Allah ﷺ on the pulpit, with Hasan bin Ali at his side. He would turn to the people once and to him another time, saying, "This son of mine is a master, and perhaps Allah will reconcile through him two great factions of the Muslims."'"Abu Abdullah said, Ali bin Abdullah said to me, "It is only through this hadith that Hasan's hearing from Abu Bakra is established for us."

Azami 10158

Sahih

عن الحسن يقول

استقبل والله الحسن بن علي معاوية بكتائب أمثال الجبال، فقال عمرو بن العاص: إني لأرى كتائب لا تولي حتى تقتل أقرانها فقال له معاوية: - وكان والله خير الرجلين- أي عمرو، إن قتل هؤلاء هؤلاء، وهؤلاء هؤلاء، من لي بأمور الناس، من لي بنسائهم من لي بضيعتهم، فبعث إليه رجلين من قريش من بني عبد شمس: عبد الرحمن بن سمرة، وعبد الله بن عامر بن كريز، فقال: اذهبا إلى هذا الرجل، فاعرضا عليه، وقولا له، واطلبا إليه، فأتياه، فدخلا عليه، فتكلما، وقالا له، فطلبا إليه، فقال لهما الحسن بن علي: إنا بنو عبد المطلب قد أصبنا من هذا المال، وإن هذه الأمة قد عاثت في دمائها. قالا: فإنه يعرض عليك كذا وكذا، ويطلب إليك ويسألك. قال: فمن لي بهذا؟ قالا: نحن لك به. فما سألهما شيئا إلا قالا: نحن لك به، فصالحه، فقال الحسن: ولقد سمعت أبا بكرة يقول: رأيت رسول الله ﷺ على المنبر، والحسن بن علي إلى جنبه، وهو يقبل على الناس مرة، وعليه أخرى، ويقول: إن ابني هذا سيد، ولعل الله أن يصلح به بين فئتين عظيمتين من المسلمين قال أبو عبد الله: قال لي علي بن عبد الله: إنما ثبت لنا سماع الحسن من أبي بكرة بهذا الحديث.

الأعظمي 10158صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Virtues of the Companions and reports about them
Chapter
Virtues of individual Companions and their reports
Section
Virtue of Hasan bin Ali, and that he is a leader through whom Allah will reconcile two groups of Muslims
Numbering
Jami al-Kamil 10158 (2nd edition)
Azami 10158