(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. (IT)
Reference (IT): Sunan an-Nasa'i 1227 (IT)
In-book reference (IT): Book 13, Hadith 49 (IT)
English translation (IT): Vol. 2, Book 13, Hadith 1228 (IT)