Musannaf Ibn Abi Shayba 18:29

Abu Bakr narrated to us, he said: Abd al-A’la narrated to us, from Sa’id, from Qatadah, from Sa’id ibn al-Musayyib, and from Abd Rabbih, from Abu Iyad, from Uthman and Zayd, that they both said regarding accidental [homicide]: Thirty *hiqqah* (four-year-old she-camels), thirty *bint labun* (two-year-old she-camels), twenty *ibn labun* (two-year-old male camels), and twenty *bint makhad* (one-year-old she-camels).