And those who believed after [the initial emigration] and emigrated and fought w-Quran Verses

8-Surah Al-Anfal ( The Spoils of War ) 75

And those who believed after [the initial emigration] and emigrated and fought with you - they are of you. But those of [blood] relationship are more entitled [to inheritance] in the decree of Allah. Indeed, Allah is Knowing of all things.

﴿75﴾وَالَّذِينَ آمَنُوا مِن بَعْدُ وَهَاجَرُوا وَجَاهَدُوا مَعَكُمْ فَأُولَٰئِكَ مِنكُمْ ۚ وَأُولُو الْأَرْحَامِ بَعْضُهُمْ أَوْلَىٰ بِبَعْضٍ فِي كِتَابِ اللَّهِ ۗ إِنَّ اللَّهَ بِكُلِّ شَيْءٍ عَلِيمٌ

Quran's Tafhim ( explanation)

*53). The purpose of the verse is to make it clear that the basis of inheritance is blood relationship and marriage rather than the mere bond of Islamic brotherhood. What occasioned this statement was the misunderstanding which had arisen after migration to Madina, when the Prophet (peace be on him) established fraternal relations between the Ansar and the Muhajirun and made pairs of them declaring that they were 'brothers' of each other. (See Ibn Hisham, vol. 1, pp. 504-6 - Ed.)