Sahih al-Bukhari 545
Book 9: Times of the Prayers · Narrated by `Aisha
Arabic
حَدَّثَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم صَلَّى الْعَصْرَ وَالشَّمْسُ فِي حُجْرَتِهَا، لَمْ يَظْهَرِ الْفَىْءُ مِنْ حُجْرَتِهَا.
English translation
Narrated `Aisha:Allah's Messenger (ﷺ) used to offer the `Asr prayers at a time when the sunshine was still inside my chamber and no shadow had yet appeared in it
Reference: Sahih al-Bukhari 545, Book of Times of the Prayers. English translation by Dr. Muhammad Muhsin Khan.