The Qur'anic verse: "If they do come to thee, either judge between them, or decline to interfere" was abrogated by the verse: "So judge between them by what Allah hath revealed."
{ فَإِنْ جَاءُوكَ فَاحْكُمْ بَيْنَهُمْ أَوْ أَعْرِضْ عَنْهُمْ } فَنُسِخَتْ قَالَ { فَاحْكُمْ بَيْنَهُمْ بِمَا أَنْزَلَ اللَّهُ }