Surah Al-Ma'idah 5:81
وَلَوْ كَانُوا۟ يُؤْمِنُونَ بِٱللَّهِ وَٱلنَّبِىِّ وَمَآ أُنزِلَ إِلَيْهِ مَا ٱتَّخَذُوهُمْ أَوْلِيَآءَ وَلَـٰكِنَّ كَثِيرًا مِّنْهُمْ فَـٰسِقُونَ
And if they had believed in Allāh and the Prophet and in what was revealed to him, they would not have taken them as allies; but many of them are defiantly disobedient.
Translation: Saheeh International
Tafsir
Yet had they believed in God and the Prophet Muhammad (s) and what has been revealed to him they would not have affiliated with them namely with the disbelievers; but many of them are wicked rebellious against faith.
Excerpt from Tafsir al-Jalalayn, commentary on 5:81, via Quran.com. The reader has the full commentary and 9 more tafsirs.