The obligation of staying with the Jama'ah (main body) of the muslims when Fitn (tribulations) appear, and in all circumstances. The prohibition of refusing to obey and on splitting away from the Jama'ah
وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا يَحْيَى بْنُ عَبْدِ اللَّهِ بْنِ بُكَيْرٍ، حَدَّثَنَا لَيْثٌ، عَنْ عُبَيْدِ اللَّهِ، بْنِ أَبِي جَعْفَرٍ عَنْ بُكَيْرِ بْنِ عَبْدِ اللَّهِ بْنِ الأَشَجِّ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّهُ أَتَى ابْنَ مُطِيعٍ . فَذَكَرَ عَنِ النَّبِيِّ صلى الله عليه وسلم نَحْوَهُ .
It has been narrated on the authority of Ibn 'Umar that he visited Ibn Muti', and related from the Prophet (ﷺ) the tradition that has gone before.