Jami` at-Tirmidhi 906
جامع الترمذي#906SahihIbn Abbas narrated:"The Prophet garlanded two sandals and marked the Hadi on the right side at Dhul-Hulaifah, and removed the blood from it
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 - Bukhari And Muslim
In-book reference: 9:99