8:75Al-Anfaal

Referring to the verse: "Those who believed and adopted exile... As to those who believed but came not into exile": A bedouin (who did not migrate to Medina) did not inherit from an emigrant, and an emigrant did no inherit from him. It was abrogated by the verse: "But kindred by blood have prior rights against each other."

"To those also, to whom your right hand was pledged, give your portion." When the Emigrants came to Medina. they inherited from the Helpers without any blood-relationship with them for the brotherhood which the Messenger of Allah (ﷺ) established between them. When the following verse was revealed: "To (benefit) everyone we have appointed shares and heirs to property left by parent and relatives." it abrogated the verse: "To those also, to whom your right hand was pledged, give their due portion." This alliance was made for help, well wishing and cooperation. Now a legacy can be made for him. (The right to)inheritance was abolished.

Regarding the Holy Verse:--'And to everyone, We have appointed heirs..' And:-- (4.33) 'To those also to Whom your right hands have pledged.' (4.33) When the emigrants came to Medina, the Ansar used to be the heir of the emigrants (and vice versa) instead of their own kindred by blood (Dhawl-l-arham), and that was because of the bond of brotherhood which the Prophet (ﷺ) had established between them, i.e. the Ansar and the emigrants. But when the Divine Verse:-- 'And to everyone We have appointed heirs,' (4.33) was revealed, it cancelled the other, order i.e. 'To those also, to whom Your right hands have pledged.'

Regarding the Verse: "To everyone, We have appointed heirs." (4.33) 'Mawali' means heirs. And regarding:-- "And those to whom your right hands have pledged." When the Emigrants came to Medina, an Emigrant used to be the heir of an Ansari with the exclusion of the latter's relatives, and that was because of the bond of brotherhood which the Prophet (ﷺ) had established between them (i.e. the Emigrants and the Ansar). So when the Verses:-- "To everyone We have appointed heirs." was revealed, (the inheritance through bond of brotherhood) was cancelled. Ibn `Abbas then said: "And those to whom your right hands have pledged." is concerned with the covenant of helping and advising each other. So allies are no longer to be the heir of each other, but they can bequeath each other some of their property by means of a will.

"Whoever equips a warrior in the cause of Allah has fought, and whoever looks after his family in his absence has fought."