Sahih Muslim Book 32, Hadith Number 6266.
Chapter : Tidings for one whose faults Allah concealed in this world: He will also conceal his faults in the hereafter.
Abu Huraira reported Allah’s Apostle (may peace be upon him) as saying: The servant (whose fault) Allah conceals in this world, Allah would also conceal (his faults) on the Day of Resurrection.