Sahih al-Bukhari, Volume 5, Book 58, Hadith 188 (USC-MSA) ⓘ
Narrated `Amr bin Maimun: During the pre-lslamic period of ignorance I saw a she-monkey surrounded by a number of monkeys. They were all stoning it, because it had committed illegal sexual intercourse. I too, stoned it along with them.
حَدَّثَنَا نُعَيْمُ بْنُ حَمَّادٍ، حَدَّثَنَا هُشَيْمٌ، عَنْ حُصَيْنٍ، عَنْ عَمْرِو بْنِ مَيْمُونٍ، قَالَ رَأَيْتُ فِي الْجَاهِلِيَّةِ قِرْدَةً اجْتَمَعَ عَلَيْهَا قِرَدَةٌ قَدْ زَنَتْ، فَرَجَمُوهَا فَرَجَمْتُهَا مَعَهُمْ.
also referenced under: Book 63, Hadith 75 (In-Book) & Hadith 3849 (DarusSalam)