4 : 105
إِنَّآ أَنزَلۡنَآ إِلَيۡكَ ٱلۡكِتَٰبَ بِٱلۡحَقِّ لِتَحۡكُمَ بَيۡنَ ٱلنَّاسِ بِمَآ أَرَىٰكَ ٱللَّهُۚ وَلَا تَكُن لِّلۡخَآئِنِينَ خَصِيمٗا
We have sent down the Book to you [O Prophet] in truth, so that you may judge between people, in accordance with what Allah has taught you. So do not be an advocate for the deceitful.