4. Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan from ‘Is ibn al-Qasim who has said the following: “This is concerning my question before abu ‘Abd Allah عليه السلام, about Cheetah and predator birds; if business could be sought with them. He (the Imam) said, ‘Yes, it is possible.’”