In 622, to the invitation in the Muslims of Yathrib (afterwards Medina), Muhammad purchased his followers to migrate there. The migration started in batches. Ali was the last to stay in Mecca, entrusted with responsibility for settling any loans the Muslims had taken out, and famously slept during the mattress https://sdsherrif25803.yomoblog.com/45738748/muhammad-abubakar-maken-for-dummies