Sahih Muslim 1381
The Book of Mosques and Places of Prayer
قَالَ عُرْوَةُ وَلَقَدْ حَدَّثَتْنِي عَائِشَةُ، زَوْجُ النَّبِيِّ صلى الله عليه وسلم أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يُصَلِّي الْعَصْرَ وَالشَّمْسُ فِي حُجْرَتِهَا قَبْلَ أَنْ تَظْهَرَ .
Urwah (also) said:'A'isha?, the wife of the Apostle (ﷺ) narrated it to me that the Messenger of Allah (ﷺ) used to say the afternoon prayer, when the light of the sun was there in her apartment before it went out (of it)
Text from the public-domain hadith-api dataset. Numbering follows that dataset and can differ by a few from some printed editions — check the wording, not only the number.