Jami` at-Tirmidhi 546
جامع الترمذي#546SahihAnas bin Malik narrated:"We prayed Zuhr as four with the Prophet in Al-Madinah, and Asr as two Rak'ah in Dhil-Hulaifah
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 MaaroufSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 6:3