Sahih Bukhari

Narrated Khabbab:I was a blacksmith and did some work for Al-`As bin Wail. When he owed me some money for my work, I went to him to ask for that amount. He said, ""I will not pay you unless you disbelieve in Muhammad."" I said, ""By Allah! I will never do that till you die and be resurrected."" He said, ""Will I be dead and then resurrected after my death?"" I said, ""Yes."" He said, ""There I will have property and offspring and then I will pay you your due."" Then Allah revealed. 'Have you seen him who disbelieved in Our signs, and yet says: I will be given property and offspring?