I saw the Prophet (ﷺ) carrying Al-Hasan on his shoulder an saying, "O Allah! I love him, so please love him."
Sahih al-Bukhari Book 62, Hadith 94
← Previous Hadith Anas bin Malik said, "The head of Al-Husain was brought to 'Ubaidullah bin Ziyad and was put in a tray, and then Ibn Ziyad started playing with a stick at the nose and mouth of Al-Husain's head and saying something about his handsome features." Anas then said (to him), "Al-Husain resembled the Prophet more than the others did." Anas added, "His (i.e. Al-Husain's) hair was dyed with Wasma (i.e. a kind of plant used as a dye).

Sahih al-Bukhari Book 62, Hadith 93 Next Hadith → I saw Abu Bakr carrying Al-Hasan and saying, "Let my father be sacrificed for you; you resemble the Prophet and not `Ali," while `Ali was laughing at this.

Sahih al-Bukhari Book 62, Hadith 95