It was narrated that "Abdur-Rahman bin Yazeed said:

l moved on from 'Arafah with Ibn Mas’ood and when he came to Muzdalifah, he prayed Maghrib and ‘Isha', each one with an adhan and iqamah, and he ate dinner in between. Then he slept, then when someone said that dawn had broken, he prayed Fajr. Then he said: Verily the Messenger of Allah (ﷺ) said: "Verily these two prayers are delayed from their (usual) time in this place; as for Maghrib, the people do not come here until it is dark, and as for Fajr, this is its time." Then he halted and when it got light he said: If Ameer al - Mu'mineen wants to do the right the right thing he will move on now. Hardly had ‘Abdullah finished speaking but ‘Uthman moved on.