Anas bin Malik reported,

When the Prophet ﷺ arrived in Medina, the Emigrants came to him and said, "Messenger of Allah, we have never seen a people more generous when they have much, nor more willing to share when they have little, than the people among whom we have settled. They have spared us the burden of work and given us a share in their comfort, so much so that we feared they would take all the reward for themselves."The Prophet ﷺ replied, "No, not as long as you pray to Allah for them and praise them."

Tirmidhi 2487

Sahih

حدثنا الحسين بن الحسن المروزي بمكة حدثنا ابن أبي عدي حدثنا حميد

عن أنس قال

لما قدم النبي ﷺ المدينة أتاه المهاجرون فقالوا يا رسول الله ما رأينا قوما أبذل من كثير ولا أحسن مواساة من قليل من قوم نزلنا بين أظهرهم لقد كفونا المؤنة وأشركونا في المهنإ حتى لقد خفنا أن يذهبوا بالأجر كله فقال النبي ﷺ لا ما دعوتم الله لهم وأثنيتم عليهم

الترمذي 2487صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami Tirmidhi
Book
Description of the Resurrection, softening of hearts, and piety from the Messenger of Allah ﷺ
Chapter
Praise of the Muhajirun for the Ansar's treatment of them
Numbering
Darussalam 2487
Tirmidhi 2487