Jami` at-Tirmidhi 429
جامع الترمذي#429HasanAli narrated:"Allah's Messenger (S) would pray four Rak'ah before Al-Asr separating between them with At-Taslim upon the angels that are close (to Allah) and those who follow them among the Muslims and the believers
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirHasan
Al-AlbaniHasan
Bashar Awad MaaroufHasan
Zubair Ali ZaiHasan
In-book reference: 2:282