Usama b. Zaid told that the Prophet used to take al-Hasan and him and say, "0 God, I beseech Thee to love them, for I love them." In a version he told that God's messenger used to take him and put him on his knee, then put al-Hasan on the other knee, and after embracing them say, "0 God, I beseech Thee to have compassion on them, for I have compassion on them." Bukhari transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب المناقب / 6149
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:رواه البخاري (3735)
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «رواه البخاري (3735) و الرواية الثانية، رواها البخاري (6003)»