Hadith #2391 (Sunan Ibn Majah)
Book: The Chapters on Blood Money
Narrator(s): Abu Hurairah, Dhhyl bin Awf bin Shmakh ذهيل بن عوف, Hajjaj bin al-Minhal حجاج بن المنهال, Slyt bin 'Abdullah سليط بن عبد الله الطهوي, Umar bin 'Ali bin Ata'a bin Maqaddam عمر بن علي بن عطاء بن مقدم

“For a wound that exposes a bone, is five; (the compensation) is five camels.”

Source: https://parallelquran.com/hadith/sunan-ibn-majah-2391/