Musnad Ahmad 30:2823

He said: I read to Abd al-Rahman: Malik, and Ishaq narrated to us, he said: Malik informed me, from Muhammad ibn Yahya ibn Habban, from al-A'raj, from Abu Hurairah, "That the Messenger of Allah, may Allah bless him and grant him peace, forbade prayer after the Asr [prayer] until the sun sets, and [forbade] prayer after the Subh [prayer] until the sun rises."