(22) باب مَا يَفْعَلُ مَنْ سَلَّمَ مِنْ رَكْعَتَيْنِ نَاسِيًا وَتَكَلَّمَ
It was narrated from Abu Hurairah that:
The Messenger of Allah (ﷺ) prayed Zuhr with two rak'ahs, then said the salam. They said: "Has the prayer been shortened?" So he stood up and prayed two rak'ahs, then he said the salam, then he prostrated twice. (RU)
Reference (RU): Sunan an-Nasa'i 1227 (RU)
In-book reference (RU): Book 13, Hadith 49 (RU)
English translation (RU): Vol. 2, Book 13, Hadith 1228 (RU)