(21) باب مَا يَفْعَلُ مَنْ قَامَ مِنَ اثْنَتَيْنِ نَاسِيًا وَلَمْ يَتَشَهَّدْ
It was narrated from 'Abdullah bin Buhainah that:
The Messenger of Allah (ﷺ) stood up during the prayer when he should have sat, so he prostrated twice while sitting, before the taslim. (RU)
Reference (RU): Sunan an-Nasa'i 1223 (RU)
In-book reference (RU): Book 13, Hadith 45 (RU)
English translation (RU): Vol. 2, Book 13, Hadith 1224 (RU)