Abu Hurairah reported,

I went out with the Messenger of Allah ﷺ during part of the day, and he did not speak to me nor did I speak to him, until he reached the market of Banu Qaynuqa. Then he turned back and came to the tent of Fatimah and said, "Is the little one there? Is the little one there?" meaning Hasan.We thought his mother was keeping him back only to wash him and dress him in a beaded necklace. It was not long before he came running, and each of them embraced the other.The Messenger of Allah ﷺ then said, "O Allah, I love him, so love him, and love whoever loves him."

Muslim 6257

Sahih

حدثنا ابن أبي عمر حدثنا سفيان عن عبيد الله بن أبي يزيد عن نافع بن جبير بن مطعم

عن أبي هريرة قال

خرجت مع رسول الله ﷺ في طائفة من النهار لا يكلمني ولا أكلمه حتى جاء سوق بني قينقاع ثم انصرف حتى أتى خباء فاطمة فقال أثم لكع أثم لكع يعني حسنا فظننا أنه إنما تحبسه أمه لأن تغسله وتلبسه سخابا فلم يلبث أن جاء يسعى حتى اعتنق كل واحد منهما صاحبه فقال رسول الله ﷺ اللهم إني أحبه فأحبه وأحبب من يحبه

مسلم 6257صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Virtues of the Companions, may Allah be pleased with them
Chapter
Virtues of Hasan and Husayn, may Allah be pleased with them
Numbering
Darussalam 6257
Muslim 6257