When the Aayat: “Whoever does an evil act will face retribution for it,” was revealed, Abu Bakr Siddeeq (Radhiyallahu Anhu) said: “Who is going to be saved from this then, O Rasool of Allah?” Rasoolullah (Sallallahu alaihi wa sallam) responded: “May Allah forgive you, O Abu Bakr! Do you not become sorrowful? Do you not undergo difficulty? Do you not take ill?” Hazrat Abu Bakr (Radhiyallahu anhu) replied: “I certainly do, Yaa Rasoolallah!” “That is all part of the retribution,” Nabi (Sallallahu alaihi wa sallam) replied.
(Ahmad, Ibn Hibbaan – Mirqaat)