Surah Ali 'Imran 3:149

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِن تُطِيعُوا۟ ٱلَّذِينَ كَفَرُوا۟ يَرُدُّوكُمْ عَلَىٰٓ أَعْقَـٰبِكُمْ فَتَنقَلِبُوا۟ خَـٰسِرِينَ

O you who have believed, if you obey those who disbelieve, they will turn you back on your heels, and you will [then] become losers.

Translation: Saheeh International

Tafsir

O you who believe if you obey the disbelievers in what they command you they will make you turn back on your heels back to unbelief and you will revert as losers.

Excerpt from Tafsir al-Jalalayn, commentary on 3:149, via Quran.com. The reader has the full commentary and 9 more tafsirs.