Chapter 16: The Book of Pilgrimage
' Abd al-Rahman b. Yazid and al-Aswad b. Yazid reported: We heard 'Abdullah b. Mas' ud saying to the gathering of people (at Muzdalifa) that he had heard Talbiya from him, upon whom Surah al-Baqara was revealed, at this very place. And so he (' Abdullah b. Mas' ud) pronounced Talbiya and we also pronounced it with him.
Sahih Muslim 1283d