Sahih Muslim Book 37, Hadith Number 6619.

Chapter : Exhortation for repentance.

Anas b. Malik reported that Allah’s Messenger (may peace be upon him) said: Allah is more pleased with the repentance of His servant than if one of you gets up and he finds his camel missing in a waterless desert (and then he accidentally finds it). This hadith has been narrated on the authority of Anas b. Malik through another chain of transmitters.