﴿ إِنَّآ أَنزَلْنَآ إِلَيْكَ ٱلْكِتَٰبَ بِٱلْحَقِّ لِتَحْكُمَ بَيْنَ ٱلنَّاسِ بِمَآ أَرَىٰكَ ٱللَّهُ ۚ وَلَا تَكُن لِّلْخَآئِنِينَ خَصِيمًۭا ﴾

“BEHOLD, We have bestowed upon thee from on high this divine writ, setting forth the truth, so that thou may judge between people in accordance with what God has taught thee. Hence, do not contend with those who are false to their trust,”

Please check ayah 4:109 for complete tafsir.