﴿ وَكَيْفَ يُحَكِّمُونَكَ وَعِندَهُمُ ٱلتَّوْرَىٰةُ فِيهَا حُكْمُ ٱللَّهِ ثُمَّ يَتَوَلَّوْنَ مِنۢ بَعْدِ ذَٰلِكَ ۚ وَمَآ أُو۟لَٰٓئِكَ بِٱلْمُؤْمِنِينَ ﴾

“But how is it that they ask thee for judgment seeing that they have the Torah, containing God's injunctions - and thereafter turn away [from thy judgment]? Such as these, then, are no [true] believers.”

Please check ayah 5:44 for complete tafsir.