Sahih Muslim · Hadith 6020
وحدثنا عاصم بن النضر التيمي، حدثنا خالد، - يعني ابن الحارث - حدثنا حميد، عن موسى بن انس، عن ابيه، قال ما سيل رسول الله صلى الله عليه وسلم على الاسلام شييا الا اعطاه - قال - فجاءه رجل فاعطاه غنما بين جبلين فرجع الى قومه فقال يا قوم اسلموا فان محمدا يعطي عطاء لا يخشى الفاقة
Musa b. Anas reported on the authority of his father: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