From Sahih Muslim (Hadith 2428):
Umar b. Khattab (Allah be pleased with him) reported that the Messenger of Allah (ﷺ) distributed something. Upon this I said:Messenger of Allah, I swear by God, the others besides them were more deserving than these (to whom you gave charity). He said: They had in fact left no other alternative for me. but (that they should) either beg importunately from me or they would regard me as a miser, but I am not a miser
Reference: Muslim 2428