Surah Hud
Remain steadfast in following the Right Way and let those with you who have returned with you (to the fold of faith and obedience), follow the Right Way as you were commanded, and do not exceed the proper limits of (devotion to Allah). For certainly He is aware of all that you do.

And do not incline towards the wrong-doers lest the Fire seize you and then you have none to protect you against Allah; and then you will not be helped from anywhere. [11:112-113]