﴿ فَأَسْرِ بِأَهْلِكَ بِقِطْعٍۢ مِّنَ ٱلَّيْلِ وَٱتَّبِعْ أَدْبَٰرَهُمْ وَلَا يَلْتَفِتْ مِنكُمْ أَحَدٌۭ وَٱمْضُوا۟ حَيْثُ تُؤْمَرُونَ ﴾

“Go, then., with thy household while it is yet night, with thyself following them in the rear; and let none of you look back, but proceed whither you are bidden."”

Please check ayah 15:66 for complete tafsir.