(14) باب مَا سُئِلَ رَسُولُ اللَّهِ صلى الله عليه وسلم شَيْئًا قَطُّ فَقَالَ لاَ وَكَثْرَةِ عَطَائِهِ
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.
Reference: Sahih Muslim 2312 a
In-book reference: Book 43, Hadith 78
USC-MSA web (English) reference(deprecated numbering scheme): Book 30, Hadith 5728