(198) باب إِذَا صَلَّى خَمْسًا
'Abd Allah (b. Mas'ud) said :
The Messenger of Allah (ﷺ) prayed five rak'ahs in the noon prayer. He was asked whether the prayer had been extended. He asked what they meant by that. The people said : you prayed five rak'ahs. Then he made two prostrations after having given the salutation.
Reference: Sunan Abi Dawud 1019
In-book reference: Book 2, Hadith 630
English translation: Book 2, Hadith 1014