كتاب الحج
15  
The Book of Pilgrimage
(45)
Chapter: It is recommended for the pilgrim to continue reciting the Talbiyah until he starts stoning Jamrat Al-'Aqabah on the day of sacrifice
(45)
باب اسْتِحْبَابِ إِدَامَةِ الْحَاجِّ التَّلْبِيَةَ حَتَّى يَشْرَعَ فِي رَمْىِ جَمْرَةِ الْعَقَبَةِ يَوْمَ النَّحْرِ
Sahih Muslim 1283 a

'Abdullah narrated to us as we had gathered (at Muzdalifa):

I have heard from one upon whom Surah al-Baqara was revealed (the Holy Prophet) pronouncing Talbiya at this place.
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ حُصَيْنٍ، عَنْ كَثِيرِ بْنِ مُدْرِكٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ، قَالَ قَالَ عَبْدُ اللَّهِ وَنَحْنُ بِجَمْعٍ سَمِعْتُ الَّذِي أُنْزِلَتْ عَلَيْهِ سُورَةُ الْبَقَرَةِ يَقُولُ فِي هَذَا الْمَقَامِ ‏ "‏ لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ ‏"‏ ‏.‏
Reference : Sahih Muslim 1283a
In-book reference : Book 15, Hadith 297
USC-MSA web (English) reference : Book 7, Hadith 2934
  (deprecated numbering scheme)