When the Holy Prophet Muhammad (SAW) migrated to Medina,this city was inhabited by different sections of people.They were:The faithful followers of Muhammad (SAW) who had abandoned the ties of kith and kin and followed him (SAW).They were known as Muhajireen or "Refugees".The new converts of Medina whi had helped the Prophet (SAW) through thick and thin were known as Ansar or "Helpers"

The other community lived in Medina were the Idol worshipers and Jews.

In order to create harmony and cooperation.the Prophet (SAW) firs abolished the tribal distinction and grouped the inhabitants of Medina under one genera name.