AHMAD-ZUHD 1687:
from al-Awzāʿī ʿAmman —
[Machine] Umar ibn Abdul Aziz said, "No people have deviated in their religion except that they have separated from their community."
الزهد لأحمد ١٦٨٧:
عن الاوزاعي عمن —
قَالَ قَالَ عُمَرُ بْنُ عَبْدِ الْعَزِيزِ «مَا انْتَجَى قَوْمٌ فِي دِينِهِمْ دُونَ جَمَاعَتِهِمْ إِلَّا كَانُوا عَلَى تَأْسِيسِ ضَلَالَةٍ»