9. A number of our people have narrated from Ahmad ibn Muhammad from al-Qasim ibn Yahya from his grandfather al-Hassan ibn Rashid from Ya‘qub ibn Ja‘far who has said the following: “Abu al-Hassan عليه السلام, looked at pigeons in his house and said, ‘With every vibration that it causes, Allah thereby dispels from the house the incantations and spells by the people on earth that may try to enter therein.”’