Al-Hijr 15:65

Faasri bi-ahlika biqitAAin minaallayli wattabiAA adbarahum wala yaltafitminkum ahadun wamdoo haythutu/maroon

So set out with your family during a portion of the night and follow behind them and let not anyone among you look back and continue on to where you are commanded."

So, carry your family after a part of the night (has passed), and follow them at the rear (to make sure that all of your family has joined you), and no one from you should look back; and keep going to where you are commanded.”