Tafsir of Ash-Shu`ara' 26:60

Fir`awn's Pursuit and Expulsion of the Children of Israel, and how He and His People were drowned More than one of the scholars of Tafsir said that Fir`awn set out with a huge group, a group containing the leaders and entire government of Egypt at that time, i.e., the decision-makers and influential figures, princes, ministers, nobles, leaders and soldiers. Allah tells:

فٲتبعوهم مشرقين

So, they pursued them at sunrise. means, they caught up with the Children of Israel at sunrise