So they disputed over their affair among themselves and concealed their private conversation.
The Saheeh International Quran Translation
فَتَنَٰزَعُوٓا۟ أَمْرَهُم بَيْنَهُمْ وَأَسَرُّوا۟ ٱلنَّجْوَىٰSo they disputed over their affair among themselves and concealed their private conversation.