Jami` at-Tirmidhi 3486
جامع الترمذي#3486SahihAbdullah bin Amr narrated:“I saw the Prophet counting the Tasbih on his hand.”
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
Zubair Ali ZaiSahih
In-book reference: 48:117