When Jacob was come into Egypt, and your fathers cried to Yahweh, then Yahweh sent Moses and Aaron, who brought forth your fathers out of Egypt, and made them to dwell in this place.
In other words, he is declaring his innocency before the people. "Look, I didn't take from you at all. I didn't take from you your oxen, your donkeys. I didn't accept bribes. I've not oppressed you. If anyone feels that I've oppressed you, anyone feels I've defrauded, step forward, and I will pay." Really Samuel did have a very beautiful and remarkable career as the judge of Israel. Extremely outstanding person.