The Messenger of Allah ﷺ said, "Whoever forgets a prayer or sleeps through it should pray it as soon as he remembers."
قال رسول الله ﷺ: من نسي صلاة أو نام عنها فليصلها إذا ذكرها.
Bazzar narrated it in Kashf Astar (394) from Ahmad bin Miqdam, who said, Ismail bin Ulaya narrated to us, from Uyayna, from his father, from Abu Bakra, and he related the hadith.Bazzar said, "We do not know it from Abu Bakra except through this route, and no one narrated it from Ibn Ulaya except Ahmad bin Miqdam." End of quote.Haythami said in Majma (1/322), "Bazzar narrated it, and its narrators are reliable."I say, it is as he said, for most of the narrators in the chain are truthful and are among the narrators found in Tahdhib.