The Messenger of Allah ﷺ said: "Whoever forgets a prayer, let him pray it when he remembers it."  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ نَسِيَ صَلاَةً فَلْيُصَلِّهَا إِذَا ذَكَرَهَا