Sunan an-Nasa'i 579
سنن النسائي#579SahihIt was narrated from Umm Salamah that the Prophet (ﷺ) once prayed two Rak'ahs after 'Asr in her house. She asked him about that and he said:"They are two Rak'ahs that I used to pray after Zuhr, but I got distracted and forgot them until I prayed 'Asr
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 6:86