Surah 28. Al-Qasas, Ayah 21

Moses saw that his position was now untenable, both in the Palace and in the City, and indeed anywhere in Pharaoh's territory. So he suffered voluntary exile. But he did not know where to go to. His mind was in a state of agitation. But he turned to Allah and prayed. He got consolation, and felt that after all it was no hardship to leave Egypt, where there was so much injustice and oppression.