يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓاْ إِن تُطِيعُواْ ٱلَّذِينَ كَفَرُواْ يَرُدُّوكُمۡ عَلَىٰٓ أَعۡقَٰبِكُمۡ فَتَنقَلِبُواْ خَٰسِرِينَ ١٤٩
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 (English)
Each word's meaning and sound
O you who have faith in Allah and follow His Messenger, if you obey the disbelieving Jews, Christians and idolaters in the misguidance they instruct you in, then you will return after your faith back to the disbelief you were upon, and you will become losers in this world and in the Afterlife.
Al-Mukhtasar in interpreting the Noble Quran