So We returned Moses to his mother; so that her eye be delighted by him, and We fulfilled for her by the promise; as he returned to her safe from the killing of Pharaoh, and so that she not grieve over his parting, and so that she know that the promise of Allah is truth in what He promised her of his returning to her and making him of the messengers. Indeed Allah does not fail His promise, but most of the polytheists do not know that the promise of Allah is truth.