When the Muhaajireen migrated from Makkah Mukarramah for the sake of Allah Ta‘ala, leaving behind their families, kinsfolk, homes and property, and arrived in Madinah Munawwarah, then Rasulullah (sallallahu ‘alaihi wasallam) established a pact of brotherhood between the Muhaajireen and Ansaar so that the loneliness and distress of the Muhaajireen, over being separated from their families and homeland, may be replaced by the love and affection of the Ansaar.

At times of need, they may assist one another, and at the time of a calamity, they may console and give comfort to one another. The weak and downtrodden among them may acquire some strength from the brotherhood of the strong and powerful, and the weak may give his support for the strong. The fortunate may benefit from the unfortunate, while the unfortunate may benefit from the fortunate.