Abu Ishaq narrated that he heard Amr ibn Maymum say: We were at Muzdalifah when Umar ibn Khattab (RA) said, “The idolators did not depart from Muzdalifah till the sun had risen. They used to say. “Let Thabir shine (before going). But, Allah’s Messenger miS’ j_1_ differentiated from them.” So, Umar went onward before sunrise.
[Ahmed84, Bukhari 1684, Nisai 3044, Abu Dawud 1938, Ibn e Majah 3022]