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li-l-fuqarāʾi l-muhājirīna lladhīna ʾukhrijū min diyārihim wa-ʾamwālihim yabtaghūna faḍlan mina llāhi wa-riḍwānan wa-yanṣurūna llāha wa-rasūlahū ʾulāʾika humu ṣ-ṣādiqūna
[They are also] for the poor Emigrants who have been expelled from their homes and [wrested of] their possessions, who seek grace from Allah and [His] pleasure and help Allah and His Apostle. It is they who are the truthful.
— Ali Quli Qarai
Surah al-Hashr - Verse 8
The blessed Verse is saying that the booties acquired from Banu Nadhir Jews which fell into the share of the Noble Prophet (S) belong to Allah, His Messenger (S), and the kindred as well as the poor emigrants who had lost their possessions when they left their homes, possessions, and land and emigrated with Allah's Messenger (S) from Mecca to Medina seeking Divine Bounties and Satisfaction. They were the supporters of the Islamic faith and Allah's Messenger (S) and they were true in faith in Allah and His Messenger (S).
The point is that there is a token for everything thereby it may be known. The believers in the early period of the Islamic faith were tried by leading hard lives and leaving their possessions, children, peoples, and lands in the cause of the Islamic faith. They even sacrificed their lives. It is remarkable that such sacrifices were made by people who had been accustomed to idolatry all their lives. Thus, they abandoned the religions of their ancestors and converted to monotheism. The believers in the early history of the Islamic faith made such remarkable endeavors. Thus, those who are truthful in their belief are supposed to support Allah's religion and His Messenger (S) despite living in poverty and homelessness.