لَوْ خَرَجُوا۟ فِيكُم مَّا زَادُوكُمْ إِلَّا خَبَالًا وَلَأَوْضَعُوا۟ خِلَـٰلَكُمْ يَبْغُونَكُمُ ٱلْفِتْنَةَ وَفِيكُمْ سَمَّـٰعُونَ لَهُمْ ۗ وَٱللَّهُ عَلِيمٌۢ بِٱلظَّـٰلِمِينَ
Had they gone forth with you, they would not have increased you except in confusion, and they would have been active among you, seeking [to cause] you fitnah [i.e., chaos and dissension]. And among you are avid listeners to them. And Allāh is Knowing of the wrongdoers.
Dimensional Analysis
Context
If they had intended to come out, they would certainly have made some preparation therefor; but Allah was averse to their being sent forth; so He made them lag behind, and they were told, "Sit ye among those who sit (inactive)."
If they had come out with you, they would not have added to your (strength) but only (made for) disorder, hurrying to and fro in your midst and sowing sedition among you, and there would have been some among you who would have listened to them. But Allah knoweth well those who do wrong.
Indeed they had plotted sedition before, and upset matters for thee, until,- the Truth arrived, and the Decree of Allah became manifest much to their disgust.
Related Verses
واللهُ أعلمُ بالصَّواب