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.
سَمِعْتُ الَّذِي أُنْزِلَتْ عَلَيْهِ سُورَةُ الْبَقَرَةِ هَا هُنَا يَقُولُ لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ ثُمَّ لَبَّى وَلَبَّيْنَا مَعَهُ