(25) باب التَّحَرِّي
It was narrated 'Abdullah bin Ja'far that :
The Messenger of Allah (ﷺ) said: "Whoever has doubt during his prayer, let him prostrate twice after he said the taslim." (FR)
Reference (FR): Sunan an-Nasa'i 1249 (FR)
In-book reference (FR): Book 13, Hadith 71 (FR)
English translation (FR): Vol. 2, Book 13, Hadith 1250 (FR)