narrated 'abdullah bin 'umar (radi-allahu 'anhu):

allah's apostle (sallallahu 'alaihi wa sallam) said, "do not wish to be except like two men. a man whom allah has given the knowledge of the book
and he recites it during the hours of the night, and a man whom allah has given wealth, and he spends it in charity during the night and the hours of the day."

bukhari vol. 6 : no. 543