The Messenger of Allah ﷺ said, "Satan declared, 'By Your might, my Lord, I will not cease to lead Your servants astray as long as their souls remain in their bodies.'The Lord replied, 'By My might and majesty, I will not cease to forgive them as long as they seek My forgiveness.'"
قال رسول الله ﷺ: إن الشيطان قال: وعزتك يا رب لا أبرح أغوي عبادك ما دامت أرواحهم في أجسادهم. قال الرب: وعزتي وجلالي لا أزال أغفر لهم ما استغفروني.
Ahmad narrated it (11237, 11729) through two routes from Ibn Lahia, who said, Darraj narrated to us, from Abu Haytham, from Abu Saeed, and he mentioned it. Ibn Lahia has well known criticism regarding him. And Darraj, who is Ibn Saman Abu Samh, is daif in his narration from Abu Haytham.However, Ahmad also narrated it (11244) through another route from Abu Salama, who said, Layth (Ibn Saad) informed us, from Yazid bin Had, from Amr, from Abu Saeed Khudri, and he mentioned it. But this contains a break in the chain, for Amr, who is Ibn Abu Amr Qurashi, did not meet Abu Saeed Khudri.Taking the two chains together, the hadith is hasan.