When Al-Hasan bin `Ali moved with army units against Muawiya, `Amr bin AL-As said to Muawiya,
"I see an army that will not retreat unless and until the opposing army retreats." Muawiya said, "(If the
Muslims are killed) who will look after their children?" `Amr bin Al-As said: I (will look after them).
On that, `Abdullah bin 'Amir and `Abdur-Rahman bin Samura said, "Let us meet Muawaiya and
suggest peace." Al-Hasan Al-Basri added: No doubt, I heard that Abu Bakra said, "Once while the
Prophet was addressing (the people), Al-Hasan (bin `Ali) came and the Prophet (ﷺ) said, 'This son of mine
is a chief, and Allah may make peace between two groups of Muslims through him."
Sahih al-Bukhari Book 92, Hadith 56