8. Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan ibn Yahya from Ishaq ibn ‘Ammar from abu Basir who has said the following: “I once asked him (the Imam) عليه السلام, about locusts which get into the people’s goods and they unintentionally trample upon them or when passing on the road; step on them. He (the Imam) said, ‘If you can, avoid it but if you kill it unintentionally, then there is nothing on you.”’