Therefore, the one who can give a few coins in charity and earn himself sincere dua in the process should not allow this opportunity to pass by.

Nevertheless, the bond of brotherhood which Rasulullah (sallallahu ‘alaihi wasallam) established between the Muhaajireen and Ansaar was so strong that it was regarded as being equal to family relationship. Therefore, when an Ansaari would pass away, his Muhaajir brother would inherit from him. Allah Ta‘ala says:

إِنَّ الَّذِيْنَ آمَنُوْا وَهَاجَرُوْا وَجٰهَدُوْا بِأَمْوَالِهِمْ وَأَنفُسِهِمْ فِيْ سَبِيلِ اللهِ وَالَّذِيْنَ آوَوْا وَّنَصَرُوْا أُولٰئِكَ بَعْضُهُمْ أَوْلِيَآءُ بَعْضٍ

 “Certainly, those who brought imaan, performed hijrah and waged jihaad in the path of Allah with their wealth and lives, and those (Ansaar) who provided refuge and assistance (to the Muhaajireen) – these people are all allies (and heirs) unto one another.” (Surah Anfaal v. 72)

However, after a short period, this law (of the Muhaajireen and the Ansaar being heirs of each other) was abrogated and cancelled, and all believers were declared to be brothers unto one another. In this regard, the following verse was revealed:

إِنَّمَا الْمُؤْمِنُوْنَ إِخْوَةٌ

“Certainly, the believers are brothers (unto one another).” (Surah Hujuraat v.10)

Now, the bond of brotherhood was only for mutual assistance i.e. giving compassion, consolation, assistance and protection to one another, and inheritance was stipulated as being exclusive for family members only.

(Extracted from Seeratul Mustafa 1/440-441)