Sahih al-Bukhari, Hadith 4214 ⓘ
Narrated `Abdullah bin Mughaffal: While we were besieging Khaibar, a person threw a leather container containing some fat and I ran to take it. Suddenly I looked behind, and behold! The Prophet was there. So I felt shy (to take it then).
حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا شُعْبَةُ. وَحَدَّثَنِي عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَهْبٌ، حَدَّثَنَا شُعْبَةُ، عَنْ حُمَيْدِ بْنِ هِلاَلٍ، عَنْ عَبْدِ اللَّهِ بْنِ مُغَفَّلٍ ـ رضى الله عنه ـ قَالَ كُنَّا مُحَاصِرِي خَيْبَرَ فَرَمَى إِنْسَانٌ بِجِرَابٍ فِيهِ شَحْمٌ، فَنَزَوْتُ لآخُذَهُ، فَالْتَفَتُّ فَإِذَا النَّبِيُّ صلى الله عليه وسلم، فَاسْتَحْيَيْتُ.
also referenced under: Book 64, Hadith 254 (In-Book) & Volume 5, Book 59, Hadith 525 (USC-MSA)