Hadith #5864 (Sahih Muslim)
Book: The Book of Virtues
Narrator(s): Musa bin Anas bin Malik موسى بن أنس بن مالك
Grade: Sahih

It never happened that Allah’s Messenger (ﷺ) was asked anything for the sake of Islam and he did not give that. There came to him a person and he gave him a large flock (of sheep and goats) and he went back to his people and said: My people, embrace Islam, for Muhammad gives so much charity as if he has no fear of want.

Source: https://parallelquran.com/hadith/sahih-muslim-5864/