Tafsir of Ash-Shu`ara' 26:112

They said: "Shall we believe in you, when the inferior follow you!'' He said: "And what knowledge have I of what they used to do'' meaning, `what does it have to do with me if they follow me! No matter what they used to do before, I do not have to check on them and examine their background; all I have to do is accept it if they believe in me; whatever is in their hearts is for Allah to know.'

إن حسابهم إﻻ على ربي لو تشعرون