[crystalk]

I believe it was 622 when he made his deal with the Jews of Medinah, and about seven years later (c629) he killed them all once they had stood down their arms, and sent their wives and children into slavery.

[CaptRon]

True. Medinah was originally a Jewish settlement named Yathrib some of whose elders believed that Muhammad might be the the Messiah. They welcomed him and his followers into their settlement. Muhammad used it as a base for raiding caravans for many years.