Banu Khazraj
Muadh ibn Jabal (; 603 – 639) was a sahabi (companion) of the Islamic prophet Muhammad. Muadh was an "Ansar" of Banu Khazraj and compiled the Quran with five companions while Muhammad was still alive. He was known as the one with a lot of knowledge. He was called by Muhammad "the one who will lead the scholars into Paradise."