Sahih Muslim | Book 37 | Hadith Number 6618

Narrated by Anas b. Malik
Anas b. Malik reported that Allah's Messenger (may peace be upon him) said: Allah is more pleased with the repentance of a servant as he turns towards Him for repentance than this that one amongst you is upon the camel in a waterless desert and there is upon (that camel) his provision of food and drink also and it is lost by him, and he having lost all hope (to get that) lies down in the shadow and is disappointed about his camel and there he finds that camel standing before him. He takes hold of his nose-string and then out of boundless joy says: O Lord, Thou art my servant and I am Thine Lord. He commits this mistake out of extreme delight.