Surah At-Taubah Verse 122 - English Translation by Dr Kamal Omar
Surah At-Taubah۞وَمَا كَانَ ٱلۡمُؤۡمِنُونَ لِيَنفِرُواْ كَآفَّةٗۚ فَلَوۡلَا نَفَرَ مِن كُلِّ فِرۡقَةٖ مِّنۡهُمۡ طَآئِفَةٞ لِّيَتَفَقَّهُواْ فِي ٱلدِّينِ وَلِيُنذِرُواْ قَوۡمَهُمۡ إِذَا رَجَعُوٓاْ إِلَيۡهِمۡ لَعَلَّهُمۡ يَحۡذَرُونَ
And the Believers are not (such) that they may march out, each and every one. So why not marched out from all sections amongst them a group (so that they who are scholars, they stay out of the encounters) so that they may think over about Religion, and so that they may warn their nation (against undesirable behaviour) when they returned back to these (scholars at their parent place of residence), so that they (the Muslim nation) may fully guard (against evil beliefs, concepts and practices)