28-14 (The author of the book narrated) my father - may God be pleased with him - narrated that Sa’d ibn Abdullah quoted on the authority of Ahmad ibn Abi Abdillah al-Barqi, on the authority of Ali ibn Muhammad al-Qasani, on the authority of Abi Ayyoub al-Madini, on the authority of Soleiman ibn Ja’far al-Ja’fari, on the authority of Al-Ridha (s), on the authority of his forefathers (s), on the authority of Ali (s) that God’s Prophet (s) admonished against killing the following five: shrikes, hoopoes, bees, ants, and frogs, and ordered people to kill the following five: crows, kites, snakes, scorpions, and mordacious dogs.The author of this book (Sheikh Sadooq) said, “This is a form of permission and not an obligation.”