Musnad Ahmad 8:31

Ishaq ibn Isa narrated to us, Ibrahim—meaning Ibn Sa’d—narrated to me, from his father, from Mu’adh al-Taymi, who said: I heard Sa’d ibn Abi Waqqas saying: I heard the Prophet, peace and blessings of Allah be upon him, saying: "Two prayers after which there is no prayer: the dawn [prayer] until the sun rises, and the afternoon [prayer] until the sun sets."