(66) باب الرَّجُلِ يُصَلِّي الصَّلَوَاتِ بِوُضُوءٍ وَاحِدٍ
Buraidah on the authority of his father reported:
The Messenger of Allah (ﷺ) performed five prayers with the same ablution of the occasion of the capture of Mecca, and he wiped over his socks. 'Umar said to him(the Prophet): I saw you doing a thing today that you never did. He said: I did it deliberately.
Reference: Sunan Abi Dawud 172
In-book reference: Book 1, Hadith 172
English translation: Book 1, Hadith 172