(25) باب التَّحَرِّي
It was narrated from 'Abdullah bin Ja'far that:
The Messenger of Allah (ﷺ) said: "Whoever has doubt during his prayer, let him prostrate twice." (One of the narrators) Hajjaj said: "After he has said the taslim." (Another of them) Rawh said: "While he is sitting." (RU)
Reference (RU): Sunan an-Nasa'i 1251 (RU)
In-book reference (RU): Book 13, Hadith 73 (RU)
English translation (RU): Vol. 2, Book 13, Hadith 1252 (RU)