´Narrated Abu Yunus, the freed slave of 'Aishah:` "'Aishah ordered me to write a Mushaf for her, and she said: 'When you get to this Ayah then tell me: Guard strictly (the five obligatory) prayers, and the middle Salat (2:238). So when I reached it, I told her and she dictated to me: 'Guard strictly (the five obligatory) prayers, and the middle Salat, and Salat Al-'Asr. And stand before Allah with obedience.' She said: 'I heard that from the Messenger of Allah (ﷺ).'
Hadith Referenceسنن ترمذي / كتاب تفسير القرآن عن رسول الله صلى الله عليه وسلم / 2982
Hadith Gradingالألبانی:صحيح، صحيح أبي داود (437)
Hadith Takhrij«صحیح مسلم/المساجد 36 (629) ، سنن ابی داود/ الصلاة 5 (410) ، سنن النسائی/الصلاة 14 (473) ( تحفة الأشراف : 17809) ، و مسند احمد (6/73) (صحیح)»