Hazrat Abu Hurairah Dosi (may Allah be pleased with him) narrated that the Messenger of Allah (peace and blessings of Allah be upon him) set out during a part of the day. Neither did he (peace be upon him) speak to me, nor did I speak to him. In this manner, he reached the market of Banu Qaynuqa, then (returned and) sat in the courtyard of Fatimah’s (may Allah be pleased with her) house and said:“Where is the child, where is the child?”Fatimah (may Allah be pleased with her) could not immediately come to your (peace be upon him) service due to some engagement. I thought, perhaps she is dressing Hasan (may Allah be pleased with him) or bathing him. After a short while, Hasan (may Allah be pleased with him) came running; he (peace be upon him) embraced him and kissed him. Then he said:“O Allah! Love him and love the one who loves him.”

Narrated Al-Bara' (may Allah be pleased with him): I saw the Messenger of Allah (peace and blessings of Allah be upon him) while Al-Hasan (may Allah be pleased with him) was on his blessed shoulder, and he (the Prophet) was saying: "O Allah! I love him, so You also love him."