The Messenger of Allah ﷺ used to pray Zuhr when the sun had passed its zenith.
حدثنا عبد الرحمن بن مهدي حدثنا شعبة عن سماك
كان رسول الله ﷺ يصلي الظهر إذا دحضت الشمس
Its isnad is sahih, it was mentioned in full previously at 19655.