Narrated Al-Bara bin 'Azib:
"I saw the Prophet (ﷺ) placing Al-Hasan bin 'Ali upon his shoulder while saying: 'O Allah, I love him, so love him.'" (JA)
English reference (JA): Vol. 1, Book 46, Hadith 3783 (JA)
Arabic reference (JA): Book 49, Hadith 4152 (JA)