Hadees Related to Sustenance (Rizq)

Mus'ab ibne-Sa'd Radiyallahu 'anhu narrates that (My father) Sa'd Radiyallahu 'anhu considered himself superior to those who were less than him (in bravery and wealth). So Nabi Sallallahu 'alaihi wasallam said (with an intention to reform) him: Undoubtedly you are helped and provided sustenance due to the blessings of the weak and destitute amongst you, (Sahih-Bukhari)