Muzdalifa
Question :

If the caravan from Arafat passes by Muzdalifa at 8:00 pm on the 9th of Thul-Hijjah, can the caravan leave Muzdalifa and come back to it before the intention of Wuquf or must they stay in Muzdalifa?

Answer :

It is obligatory to stay in Muzdalifa until after the time of Fajr. Based on compulsory precaution, the pilgrim should stay there from the middle of the night until the spread of the light after Fajr that allows pilgrims to see their way, but it is better to stay until after sunrise.