(22) باب مَنَاقِبُ الْحَسَنِ وَالْحُسَيْنِ رضى الله عنهما
Narrated Usama bin Zaid:
That the Prophet (ﷺ) used to take him and Al-Hasan, and used to say, "O Allah! I love them, so please love them," or said something similar.
Reference: Sahih al-Bukhari 3747
In-book reference: Book 62, Hadith 94
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 57, Hadith 90