Surah Al-Baqarah — Ayah 208 (2:208)
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ ٱدۡخُلُواْ فِي ٱلسِّلۡمِ كَآفَّةٗ وَلَا تَتَّبِعُواْ خُطُوَٰتِ ٱلشَّيۡطَٰنِۚ إِنَّهُۥ لَكُمۡ عَدُوّٞ مُّبِينٞ ٢٠٨
English translation (Saheeh International)
O you who have believed, enter into Islām completely [and perfectly] and do not follow the footsteps of Satan. Indeed, he is to you a clear enemy.
Brief commentary
O you who have faith in Allah and follow His Messenger, enter Islam completely and do not leave out any part of it like how the People of the Scripture believed in some parts of the book and disbelieved other parts. Do not follow the ways of Satan, because he has made it clear that he is your enemy.