Jami` at-Tirmidhi 1685
جامع الترمذي#1685SahihNarrated Anas bin Malik: "The Prophet (ﷺ) rode a horse belonging to Abu Talhah called Mandub. He said: 'There is nothing to be frightened of, and we found him to be (quick) like the sea.'" [Abu 'Eisa said:] There is something on this topic from Ibn 'Amr Al-'As
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 23:16