The Messenger of Allah ﷺ said, "Whoever forgets a prayer should perform it as soon as he remembers it."
حدثنا سريج حدثنا أبو عوانة عن قتادة
قال رسول الله ﷺ من نسي صلاة فليصلها إذا ذكرها
Its isnad is sahih, and it has already appeared at 13195.