Sunan Abi Dawud 171
سنن أبي داود#171SahihAbu 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (214)
In-book reference: 1:171