Sahih Muslim 94bBook 1, Hadith 179
I came to the Apostle (may peace be upon him ) and he was asleep with a white mantle over him. I again came, he was still asleep, I came again and he had awakened. I sat by his side and (the Holy Prophet) observed: There is none among the bondsmen who affirmed his faith in La illaha ill-Allah there is no God but Allah) and died in this state and did not enter Paradise. I (Abu Dharr) said: Even if he committed adultery and theft? He (the Holy Prophet) replied: (Yes) even though he committed adultery and theft. I (again said): Even if he committed adultery and theft? He replied: (Yes) even though he committed adultery and theft. (Th Holy Prophet repeated it three times) and said for the fourth time: In defiance of Abu Dharr. Abu Dharr then went out and he repeated (these words): In defiance of Abu Dharr.