Ta-Ha - 20:40
Remember when your sister went and said, ´Shall I show you someone to take care of him? So We returned you to your mother so that her eyes would be enlightened and she would not grieve. Even when you had killed a man, We saved you from sorrow and put you through various tests. Now you have come back, Moses, after many years among the people of Medina, according to a definite plan.
Moses killing a man and getting rid of sorrow:
The Stories/28:15
"He entered the city while his people were unaware. He saw two men fighting there, one from his side (Hebrew) and the other from the enemy´s side (Egyptian). The man from his side asked him for help against his enemy. So Moses struck the other with a blow and finished him off. He said, "This is the work of Satan; he is an enemy, a clear misleader."
The Stories/28:16
"My Lord,"he said, "I have wronged myself, forgive me."And He forgave him. For He is Forgiving, Merciful."
The Stories/28:17
"My Lord,"he said, "I will not help the guilty henceforth in return for the Blessing You have bestowed upon me."
The Stories/28:18
"He spent the morning in the city in fear, looking around. The man who had asked him for help yesterday was crying out for help again. Moses said to him, "You are obviously a troublemaker."
The Stories/28:19
"When he tried to catch their common enemy, he said, "Moses, do you want to kill me today, as you killed someone yesterday? You do not want to be righteous on the earth; you want to be a tyrant."
The Stories/28:20
"A man came running from the other side of the city and said, "Moses, the elders are talking among themselves to kill you. Leave this place quickly; I am advising you."
The Stories/28:21
"He fled from there in fear, watching the surroundings. He said: "My Lord, save me from this unjust people."
The Stories/28:22
"When he turned toward Median, he said, "I hope my Lord will guide me to the truth."
The Stories/28:23
"When he reached the water of Median, he found there a group of people watering their cattle. Behind them he saw two women being pushed and shoved. He said to them, "What do you want to do?""We cannot water until the shepherds water and leave. Our father is a very old man."
The Stories/28:24
"He watered for them, then withdrew into the shade and said, "My Lord, I am in need of whatever You will grant me."
The Stories/28:25
"Soon one of them came to him, ashamed, and said, "My father wants to pay you for watering for us."When he met him and told him what had happened to him, he said, "Do not be afraid,"he said, "You have been saved from the oppressors."
The Stories/28:26
"One of them said, "My father, give him work. He is the best of those you have hired; he is strong and trustworthy."
The Stories/28:27
"He said, "I want to marry you to one of my daughters on condition that you work for me for eight pilgrimages. You can make it ten (years) if you wish. I do not want to cause you any hardship. If Allah wills, you will find me a righteous person."