Hadithcore
Sahih Muslim, 1938 b
sahih

Al-Bara' said:

We found on the Day of Khaibar domestic asses, and the announcer of the Messenger of Allah (ﷺ) made an announcement that the earthen pots should be turned over.

وَحَدَّثَنَا ابْنُ الْمُثَنَّى، وَابْنُ، بَشَّارٍ قَالاَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، قَالَ قَالَ الْبَرَاءُ أَصَبْنَا يَوْمَ خَيْبَرَ حُمُرًا فَنَادَى مُنَادِي رَسُولِ اللَّهِ صلى الله عليه وسلم أَنِ اكْفَئُوا الْقُدُورَ ‏.‏

References2 variants
In-Book Reference
Book 34, Hadith 42
USC-MSA web (English) reference
Book 21, Hadith 4771 (deprecated numbering scheme)