It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him and his family, said regarding Sayyiduna Hasan, may Allah be pleased with him: O Allah! I love him, so You also love him, and love the one who loves him.

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him), he says: I was with the Noble Prophet (peace and blessings be upon him) in a market of Madinah. When he returned, I also returned with him. The Prophet (peace and blessings be upon him) went towards the house of Sayyidah Fatimah (may Allah be pleased with her) and, calling Sayyiduna Hasan (may Allah be pleased with him), the Prophet (peace and blessings be upon him) said three times: O child! O little one! O child! No one responded to the Prophet (peace and blessings be upon him), so he returned, and I also returned with him. Then the Prophet (peace and blessings be upon him) went and sat in the house of Sayyidah Aishah (may Allah be pleased with her). Meanwhile, Sayyiduna Hasan bin Ali (may Allah be pleased with him) also arrived. Sayyiduna Abu Hurairah (may Allah be pleased with him) says: I think his mother had held him back to put something like a necklace around his neck. When he came, the Prophet (peace and blessings be upon him) embraced him, and he clung to the Prophet’s (peace and blessings be upon him) neck. At that moment, the Prophet (peace and blessings be upon him) said three times: O Allah! I love him, so You love him too, and love the one who loves him.

(Second chain) It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) went towards the market of Banu Qaynuqa, leaning on my hand. He walked around there, then returned and sat in the mosque and said: "Where is the little one? Bring the little one to me." Meanwhile, Sayyiduna Hasan (peace be upon him) came and ran to sit in the lap of the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) put his mouth on his mouth and said three times: "O Allah! I love him, so You also love him and love those who love him." Sayyiduna Abu Hurairah (may Allah be pleased with him) says: Whenever I see Sayyiduna Hasan (may Allah be pleased with him), tears come to my eyes.

It is narrated from Sayyiduna Muawiyah bin Abi Sufyan, may Allah be pleased with him, who says: I saw that the Messenger of Allah, peace and blessings be upon him, was sucking the tongue or the lips of Sayyiduna Hasan, may Allah be pleased with him, and the tongue or lips which the Messenger of Allah, peace and blessings be upon him, has kissed, will not be subjected to punishment.

It is narrated from Umair bin Ishaq, he says: I was with Sayyiduna Hasan bin Ali (may Allah be pleased with him) when Sayyiduna Abu Hurairah (may Allah be pleased with him) met us and said: Hasan! Allow me to kiss that place of yours where I saw the Messenger of Allah (peace and blessings be upon him) kissing. Then he lifted his shirt and kissed his navel.