Musnad Ahmad 28:267

'Abd al-Samad and Husayn ibn Muhammad narrated to us, they said: Muhammad ibn Rashid narrated to us, from Sulayman ibn Musa—Husayn said in his narration: He said: 'Amr ibn Shu'ayb narrated to us, from his father, from his grandfather, that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever kills by mistake, his blood money is one hundred camels: thirty *bint makhad* (one-year-old female camels), thirty *bint labun* (two-year-old female camels), thirty *hiqqah* (three-year-old female camels), and ten *ibn labun* (two-year-old male camels)."