Sahih al-Bukhari 1659
Sahih al-Bukhari · Book 25: Hajj (Pilgrimage) · Talbiya and Takbir while proceeding from Mina to 'Arafat
Narrated Muhammad bin Abu Bakr Al-Thaqafi:
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ ، أَخْبَرَنَا مَالِكٌ ، عَنْ مُحَمَّدِ بْنِ أَبِي بَكْرٍ الثَّقَفِيِّ ، أَنَّهُ سَأَلَ أَنَسَ بْنَ مَالِكٍ وَهُمَا غَادِيَانِ مِنْ مِنًى إِلَى عَرَفَةَ كَيْفَ كُنْتُمْ تَصْنَعُونَ فِي هَذَا الْيَوْمِ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ كَانَ يُهِلُّ مِنَّا الْمُهِلُّ فَلاَ يُنْكِرُ عَلَيْهِ، وَيُكَبِّرُ مِنَّا الْمُكَبِّرُ فَلاَ يُنْكِرُ عَلَيْهِ.
I asked Anas bin Malik while we were proceeding from Mina to `Arafat, "What do you use to do on this day when you were with Allah's Messenger (ﷺ) ?" Anas said, "Some of us used to recite Talbiya and nobody objected to that, and others used to recite Takbir and nobody objected to that."