Anas bin Malik reported,

The verse "Indeed, We have given you a clear conquest" [Fath 48:1] was revealed to the Prophet ﷺ until the end of the verse on his return from Hudaybiyyah, while his companions were overwhelmed with sorrow and grief. He said, "A verse has been revealed to me that is dearer to me than the entire world and everything in it."When the Prophet of Allah ﷺ recited it, a man from the people said, "Congratulations and blessings to you. Allah has made clear what He will do for you, but what will He do for us?"So Allah عز وجل revealed the verse that follows it, "That He may admit the believing men and believing women to gardens beneath which rivers flow" [Fath 48:5], to the end of the verse.

Ahmad 13639

Sahih

حدثنا عفان حدثنا همام حدثنا قتادة

عن أنس قال

نزلت على النبي ﷺ {إنا فتحنا لك فتحا مبينا} إلى آخر الآية مرجعه من الحديبية وأصحابه مخالطو الحزن والكآبة فقال نزلت علي آية هي أحب إلي من الدنيا وما فيها جميعا قال فلما تلاها نبي الله ﷺ قال رجل من القوم هنيئا مريئا قد بين الله لك ماذا يفعل بك فماذا يفعل بنا فأنزل الله عز وجل الآية التي بعدها {ليدخل المؤمنين والمؤمنات جنات تجري من تحتها الأنهار} حتى ختم الآية

أحمد 13639صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Anas bin Malik
Numbering
Darussalam 13639
Ahmad 13639