Quran 5:63

لَوۡلَا يَنۡہَٮٰهُمُ ٱلرَّبَّـٰنِيُّونَ وَٱلۡأَحۡبَارُ عَن قَوۡلِهِمُ ٱلۡإِثۡمَ وَأَكۡلِهِمُ ٱلسُّحۡتَ‌ۚ لَبِئۡسَ مَا كَانُواْ يَصۡنَعُونَ ٦٣

If only the rabbis and the priests enjoin them from their sinful utterances and illicit earnings! Miserable indeed is what they commit.