لِلْفُقَرَآءِ ٱلْمُهَـٰجِرِينَ ٱلَّذِينَ أُخْرِجُوا۟ مِن دِيَـٰرِهِمْ وَأَمْوَٰلِهِمْ يَبْتَغُونَ فَضْلًۭا مِّنَ ٱللَّهِ وَرِضْوَٰنًۭا وَيَنصُرُونَ ٱللَّهَ وَرَسُولَهُۥٓ ۚ أُو۟لَـٰٓئِكَ هُمُ ٱلصَّـٰدِقُونَ
“[Some of the gains will be] for poor Emigrants who were driven out of their homes and wealth, seeking Allah's bounty and pleasure, and standing up for Allah and His Messenger. They are the ones true in faith.”
This ayah is part of Surah al-Hashr, which -- as this event's own significance note states -- was revealed about the expulsion of Banu Nadir (Ibn Abbas RA preferred to call it Surat Banu Nadir).