Riyad as-Salihin 1861
Abu Zaid 'Amr bin Akhtab Al-Ansari (May Allah be pleased with him) said:
The Messenger of Allah (ﷺ) led us in the morning (Fajr) prayer and he ascended the pulpit and addressed us until it was the time for the Zuhr prayer. He then came down the pulpit and led us in Salat (prayer). Again he ascended the pulpit and addressed until it was the time for the 'Asr prayer. He then again came down, led us in Salat and again ascended the pulpit and addressed us until sunset. He informed us of everything that lay hidden in the past and what will happen in the future; and the most learned amongst us is the one who has preserved it in his memory. [Muslim] .
وعن أبي  زيد عمرو بن أخطب الأنصاري رضي الله عنه قال‏:‏ صلى بنا رسول الله صلى الله عليه وسلم  الفجر، وصعد المنبر، فخطبنا حتى حضرت الظهر، فنزل فصلى، ثم صعد المنبر حتى حضرت العصر، ثم نزل فصلى، ثم صعد المنبر حتى غربت الشمس، فأخبرنا ما كان هو كائن، فأعلمنا أحفظنا‏.‏ ‏(‏‏(‏رواه مسلم‏)‏‏)‏‏.‏