The Book of the Times (of Prayer)
6/36. Chapter:
Concession Allowing Prayer After 'Asr
Sunan an-Nasai
أَخْبَرَنَا 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.'"
Reference : Sunan an-Nasa'i 574In-book reference : Book 6, Hadith 81English translation : Vol. 1, Book 6, Hadith 575