7:34For every nation is an appointed time. When their time has come, they cannot delay it by one hour, nor can they advance it.

7:142And We appointed to Moses thirty nights, and completed them with ten; and thus the time appointed by his Lord was forty nights. And Moses said to his brother Aaron: “Take my place among my people, and be upright, and do not follow the way of the mischief-makers.”

7:150And when Moses returned to his people, angry and disappointed, he said, “What an awful thing you did in my absence. Did you forsake the commandments of your Lord so hastily?” And he threw down the tablets; and he took hold of his brother’s head, dragging him towards himself. He said, “Son of my mother, the people have overpowered me, and were about to kill me; so do not allow the enemies to gloat over me, and do not count me among the unjust people.”