Tafsir of Al-Qasas 28:21

Musa, peace be upon him, in Madyan, and how He watered the Flocks of the Two Women When the man told Musa about how Fir`awn and his chiefs were conspiring against him, he left Egypt on his own. He was not used to being alone, because before that he had been living a life of luxury and ease, in a position of leadership. Allah tells:

فخرج منها خايفا يترقب

So he escaped from there, looking about in a state of fear. meaning, turning around and watching.

قال

He said:

رب نجني من القوم الظالمين

My Lord! Save me from the people who are wrongdoers! means, from Fir`awn and his chiefs. It was mentioned that Allah sent to him an angel riding a horse, who showed him the way. And Allah knows best