Sahih al-Bukhari 4255
Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Narrated by Ibn Abi `Aufa
Arabic
حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا سُفْيَانُ، عَنْ إِسْمَاعِيلَ بْنِ أَبِي خَالِدٍ، سَمِعَ ابْنَ أَبِي أَوْفَى، يَقُولُ لَمَّا اعْتَمَرَ رَسُولُ اللَّهِ صلى الله عليه وسلم سَتَرْنَاهُ مِنْ غِلْمَانِ الْمُشْرِكِينَ وَمِنْهُمْ، أَنْ يُؤْذُوا رَسُولَ اللَّهِ صلى الله عليه وسلم.
English translation
Narrated Ibn Abi `Aufa:When Allah's Messenger (ﷺ) performed the `Umra (which he performed in the year following the treaty of Al-Hudaibiya) we were screening Allah's Messenger (ﷺ) from the infidels and their boys lest they should harm him
Reference: Sahih al-Bukhari 4255, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.