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 b, c

'Abd al-Rahman b. Yazid reported that 'Abdullah (b. Mas'ud) pronounced Talbiya as he returned from the gathering of the people (at Muzdalifa). It was said:

He might be a Bedouin (not knowing correctly the rituals of Hajj and, therefore, pronouncing Talbia at this stage), whereupon Abdullah said: Hive the people forgotten (this Sunnah of the Holy Prophet) or have they gone astray? I heard him, upon whom Sibrah al-Baqara was revealed, pronouncing Talbiya at the very place.
وَحَدَّثَنَا سُرَيْجُ بْنُ يُونُسَ، حَدَّثَنَا هُشَيْمٌ، أَخْبَرَنَا حُصَيْنٌ، عَنْ كَثِيرِ بْنِ مُدْرِكٍ الأَشْجَعِيِّ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ، أَنَّ عَبْدَ اللَّهِ، لَبَّى حِينَ أَفَاضَ مِنْ جَمْعٍ فَقِيلَ أَعْرَابِيٌّ هَذَا فَقَالَ عَبْدُ اللَّهِ أَنَسِيَ النَّاسُ أَمْ ضَلُّوا سَمِعْتُ الَّذِي أُنْزِلَتْ عَلَيْهِ سُورَةُ الْبَقَرَةِ يَقُولُ فِي هَذَا الْمَكَانِ ‏ "‏ لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ ‏"‏ ‏. وَحَدَّثَنَاهُ حَسَنٌ الْحُلْوَانِيُّ، حَدَّثَنَا يَحْيَى بْنُ آدَمَ، حَدَّثَنَا سُفْيَانُ، عَنْ حُصَيْنٍ، بِهَذَا الإِسْنَادِ ‏.
Reference : Sahih Muslim 1283b, c
In-book reference : Book 15, Hadith 298
USC-MSA web (English) reference : Book 7, Hadith 2935
  (deprecated numbering scheme)