وَمِنَ الْأَعْرَابِ مَن يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الْآخِرِ وَيَتَّخِذُ مَا يُنفِقُ قُرُبَاتٍ عِندَ اللَّهِ وَصَلَوَاتِ الرَّسُولِ أَلَا إِنَّهَا قُرْبَةٌ لَّهُمْ سَيُدْخِلُهُمُ اللَّهُ فِي رَحْمَتِهِ إِنَّ اللَّهَ غَفُورٌ رَّحِيمٌ
Yet among the Bedouins are [also] those who believe in Allah and the Last Day, and regard what they spend as [a means of attaining] nearness to Allah and the blessings of the Apostle. Now, it shall indeed bring them nearness, and Allah will admit them into His mercy. Indeed Allah is all-forgiving, all-merciful.
Agha Ali Puya Commentary
Commentary on Quran 9:99
[Pooya/Ali Commentary 9:99] Now the reference is to the believing among the wandering Arabs of the desert.