Surat Adh-Dhāriyāt 51-55 reminding to believers

وَذَكِّرْ فَإِنَّ الذِّكْرَىٰ تَنفَعُ الْمُؤْمِنِينَ
Wathakkir fa-inna aththikratanfaAAu almu/mineen

And remind, for indeed, the reminder benefits the believers.