Muwatta Malik 1833
موطأ مالك#1833SahihThese are the words of a Successor — the generation after the Companions — not of the Prophet ﷺ.
وَحَدَّثَنِي مَالِكٌ، عَنْ إِسْمَاعِيلَ بْنِ أَبِي حَكِيمٍ، أَنَّهُ سَمِعَ عُمَرَ بْنَ عَبْدِ الْعَزِيزِ، يَقُولُ كَانَ يُقَالُ إِنَّ اللَّهَ تَبَارَكَ وَتَعَالَى لاَ يُعَذِّبُ الْعَامَّةَ بِذَنْبِ الْخَاصَّةِ وَلَكِنْ إِذَا عُمِلَ الْمُنْكَرُ جِهَارًا اسْتَحَقُّوا الْعُقُوبَةَ كُلُّهُمْ .
Malik related to me that Ismail ibn Abi Hakim heard Umar ibn Abd al-Aziz say, "Some say that Allah the Blessed, the Exalted, will not punish the many for the wrong action of the few. However, when the objectionable action is committed openly, then they all deserve to be punished
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 56:23