`(We bestowed another favour on you) when your sister walked along (the bank by the floating chest) and said (to those who picked up the chest from the bank of the river), "Shall I guide you to one (- a nurse) who will take charge of him?" In this way We restored you to your mother that she might be consoled and should not grieve. And (it came to pass that) you killed a person, but We delivered you from anguish. Then We purified you with various trials and you stayed for a number of years among the people of Midian. It was only then when you were properly groomed and came up to the standard (set by Us).