The Book of the Times (of Prayer)
6/52. Chapter:
Concerning One Who Forgets A Prayer
Sunan an-Nasai
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ نَسِيَ صَلاَةً فَلْيُصَلِّهَا إِذَا ذَكَرَهَا " .
It was narrated that Anas said: The Messenger of Allah (ﷺ) said: "Whoever forgets a prayer, let him pray it when he remembers it."
Reference : Sunan an-Nasa'i 613In-book reference : Book 6, Hadith 120English translation : Vol. 1, Book 6, Hadith 614