۞ وَمَا And not كَانَ is ٱلْمُؤْمِنُونَ (for) the believers لِيَنفِرُوا۟ that they go forth كَآفَّةًۭ ۚ all together فَلَوْلَا So if not نَفَرَ go forth مِن from كُلِّ every فِرْقَةٍۢ group مِّنْهُمْ among them طَآئِفَةٌۭ a party لِّيَتَفَقَّهُوا۟ that they may obtain understanding فِى in ٱلدِّينِ the religion وَلِيُنذِرُوا۟ and that they may warn قَوْمَهُمْ their people إِذَا when رَجَعُوٓا۟ they return إِلَيْهِمْ to them لَعَلَّهُمْ so that they may يَحْذَرُونَ beware ١٢٢
And it is not for the believers to go forth [to battle] all at once. For there should separate from every division of them a group [remaining] to obtain understanding in the religion and warn [i.e., advise] their people when they return to them that they might be cautious.
— Come To Light