Sunan an-Nasa'i 574
سنن النسائي#574Sahihأَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا يَحْيَى، عَنْ هِشَامٍ، قَالَ أَخْبَرَنِي أَبِي قَالَ، قَالَتْ عَائِشَةُ مَا تَرَكَ رَسُولُ اللَّهِ صلى الله عليه وسلم السَّجْدَتَيْنِ بَعْدَ الْعَصْرِ عِنْدِي قَطُّ .
It was narrated that Hisham said:"My father told me: 'Aishah said: 'The Messenger of Allah (ﷺ) never neglected to pray two Rak'ahs after 'Asr in my house
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 6:81