Jami` at-Tirmidhi 1689
جامع الترمذي#1689SahihNarrated Ibn 'Umar: "Indeed we saw the day of Hunain, and indeed the two armies fled from the Messenger of Allah (ﷺ), and there did not remain one hundred men with the Messenger of Allah (ﷺ)." [Abu 'Eisa said:] This Hadith is Hasan Gharib as a narration of 'Ubaidullah. We do not know of it except from this route
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih Isnaad
Al-AlbaniSahih Isnaad
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih
In-book reference: 23:20