So I am a bit confused. I have been told that in Islam Prophet’s cannot sin. But didn’t Adam sin, and hence the expulsion? Moreover doesn’t the Qur’an mention Adam atoning for his wrong and God forgiving him? I guess what really confuses me is the Sunnah. It seems like Muslims confer infallibility on Muhammad. Was Muhammad morally perfect? To what extent must Muslims imitate him? Is it simply with regard to ethics and religious ritual (like prayer movements)? I mean let’s say Muhammad did not like the taste of apple juice and never drank it; I would not have to imitate this behavior? Does one simply follow the literal actions of Muhammad or their deeper, more esoteric meanings? For example. Muhammad said to grow a beard and trim your moustache to distinguish oneself from unbelievers. Let’s say one was living in a non Muslim country where the larger, unbelieving population, by chance, follow just this fashion and growing a beard and trimming your moustache would in no way distinguish you from the larger population. In such a situation would one shave one’s beard to distinguish oneself thus following the spirit of the Hadith, or maintain the beard to follow the letter of it?