Musnad Ahmad 27:1609

Yunus narrated to us, Hammad—meaning Ibn Salamah—narrated to us, from Ayyub and Humayd, from Bakr ibn Abdullah, from Ibn Umar: "That the Messenger of Allah (ﷺ) prayed Dhuhr, Asr, Maghrib, and Isha at al-Batha. Then he slept a light sleep, then he entered, and he performed Tawaf around the House."