كتاب المواقيت
6  
The Book of the Times (of Prayer)
(8)
Chapter: Hastening To Pray 'Asr
(8)
باب تَعْجِيلِ الْعَصْرِ ‏.‏
Sunan an-Nasa'i 505
It was narrated from 'Aishah that the Messenger of Allah (ﷺ) prayed 'Asr when the sun was in her room and the shadow had not appeared on her wall.
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم صَلَّى صَلاَةَ الْعَصْرِ وَالشَّمْسُ فِي حُجْرَتِهَا لَمْ يَظْهَرِ الْفَىْءُ مِنْ حُجْرَتِهَا ‏.‏
Grade: Sahih (Darussalam)
Reference : Sunan an-Nasa'i 505
In-book reference : Book 6, Hadith 12
English translation : Vol. 1, Book 6, Hadith 506