Sunan an-Nasa'i 3126

Ibrahim ibn Yaqub reported to me; he said: Hajjaj narrated to us; he said: Hammad ibn Salamah narrated to us, from Yunus, from al-Hasan, from Ibn Umar, from the Prophet (peace and blessings of Allah be upon him), in what he relates from his Lord, Mighty and Majestic, who said: Any servant of Mine who goes out striving in My cause, seeking My pleasure, I guarantee that if I return him, I will return him with whatever reward or spoils he has gained; and if I take his soul, I will forgive him and have mercy on him.