Chapter Introduction
١٨٥ ـ باب في سنة العصر
Translation: 590. Narrated Ali: The Prophet ﷺ used to perform four (voluntary) raka'as before asr prayer separating between them by reciting Al-Tasleem 15 on the chosen angels, and those who followed them of the Muslims and the believers. ' (At-Termizi)
Translation: 15.At-Tasleem (ending the prayer) here means At-Tashahhod (the last part of prayer before At-Tasleem).This means that the four voluntary raka'as are performed without the first Tashahhod.
Translation: .591 Narrated Ibn Omar: The Prophet ﷺ said: “ May Allah show mercy on him who performed four raka'as before asr prayer. " (At-Termizi)