The Prophet ﷺ said, "I am only a human being like you. I forget just as you forget, so when I forget, remind me."
قال النبي ﷺ: إنما أنا بشر مثلكم، أنسى كما تنسون، فإذا نسيت فذكروني.
Bukhari reported it in the Book of Prayer (401) and Muslim in the Book of Mosques (572), both from Uthman, who said, Jareer narrated to us from Mansur, from Ibrahim, from Alqama, who said, Abdullah said, and he mentioned it in a long hadith. For more, see the Book of Faith.