Surah At-Tawbah 9:47

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.

Translation: Saheeh International

Tafsir

Had they gone forth among you they would only have caused you more trouble more corruption by abandoning the believers and would have hurried to and fro among you that is they would have hastened to spread slander among you seeking desiring to stir up sedition by casting enmity between you; …

Excerpt from Tafsir al-Jalalayn, commentary on 9:47, via Quran.com. The reader has the full commentary and 9 more tafsirs.