Sahih al-Bukhari 2986

Arabic

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا عَبْدُ الْوَهَّابِ، حَدَّثَنَا أَيُّوبُ، عَنْ أَبِي قِلاَبَةَ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ كُنْتُ رَدِيفَ أَبِي طَلْحَةَ، وَإِنَّهُمْ لَيَصْرُخُونَ بِهِمَا جَمِيعًا الْحَجِّ وَالْعُمْرَةِ‏.‏

English translation

Narrated Anas:I was riding behind Abu Talha (on the same) riding animal and (the Prophet's companions) were reciting Talbiya aloud for both Hajj and `Umra

Reference: Sahih al-Bukhari 2986, Book of Fighting for the Cause of Allah (Jihaad). English translation by Dr. Muhammad Muhsin Khan.