The hadith are attributed to this man, who fled to Medina after being evicted from Mecca for his radical monotheism.
The authenticity of this man's teachings is verified by the isnad, or chain of narrators. This man rode a winged horse and then toured both Heaven and Hell in the Isra and Mi'raj, respectively. Some of this man's early followers, called ansar, or supporters, helped him after he completed the(*) Hijra. The hadith are attributed to this man, who fled to Medina after being evicted from Mecca for his radical monotheism. For 10 points, name this man, the last true prophet and founder of Islam.
The authenticity of this man's teachings is verified by the isnad, or chain of narrators.
{Muhammad}