What did the Prophet Muhammad (saw) take the pledge of allegiance from Mujashi and his brother for?
 Narrated Mujashi:                     My brother and I came to the Prophet and I requested him to take the pledge of allegiance from us for migration. He said, "Migration has passed away with its people." I asked, "For what will you take the pledge of allegiance from us then?" He said, "I will take (the pledge) for Islam and Jihad."