Moses arrives in Midian and lives with Shu'aib 28:23-28
28:23 When he came to the water wells of Midian he found there some people drawing water, and he found two women apart from them who were keeping back (their flocks). 'What is your business?' he asked. They replied, 'We cannot draw water until the shepherds have driven away (their flocks), and our father is an elderly man.'
28:25 Then, one of the two came to him walking shyly, and said, 'My father invites you, so that he can recompense you with a wage for having drawn water for us.' So when he came to him and told him his story, (the father) said, 'Do not be afraid, you have been saved from the nation of harm doers.'
28:27 He said, 'I will let you marry one of these two daughters of mine on condition that you hire yourself to me for eight years. If you complete ten that is of your own accord; I shall not press you. Surely, you will find me, if Allah wills, among the good.'
28:28 'So be it between me and you,' said Moses. 'Whichever of the two terms I fulfill, it will be no injustice to me. Allah is the Guardian of what we say.'