It was narrated that ‘Amr bin Maimoon said: `Umar (رضي الله عنه) prayed Fajr when he was in Jam`. Abu Dawood said: We were with `Umar in Jamo, and he said: The mustrikoort used not to move on until the sun rose, and they would say: Shine, (Mount) Thabeer. The Prophet (ﷺ) of Allah differed from them and moved on before the sun rose.