Musnad Abu Ya'la al-Mawsili 42:4

Abu Khaythama narrated to us, Sufyan narrated to us, from Damra bin Sa'id, who heard Abu Sa'id al-Khudri: The Prophet, may Allah bless him and grant him peace, forbade prayer after the dawn [prayer] until the sun rises, and after the afternoon [prayer] until the sun sets.