question #1 Sahih Muslim 152, Book 1, Hadith 291 : What distinguishes the signs given to Prophet Muhammad from those given to previous prophets?

There has never been a Prophet amongst the prophets who was not bestowed with a sign amongst the signs which were bestowed (on the earlier prophets). Human beings believed in it and verily I have been conferred upon revelation (the Holy Qur’an) which Allah revealed to me. I hope that I will have the greatest following on the Day of Resurrection.