Hadith 518160
Chapter 56: Speech - كتاب الكلام
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."
Reference Muwatta Malik 518160
USC-MSA web (English) reference : Book 56, Hadith 23