(66) باب الرَّجُلِ يُصَلِّي الصَّلَوَاتِ بِوُضُوءٍ وَاحِدٍ
Abu Asad b. 'Amr said:
I asked Anas b. Malik about ablution. He replied: The Prophet (ﷺ) performed ablution for each prayer and we offered (many) prayers with the same ablution.
Reference: Sunan Abi Dawud 171
In-book reference: Book 1, Hadith 171
English translation: Book 1, Hadith 171