9-22 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted Muhammad ibn Isa, on the authority of Ubaydullah ibn Abdullah al-Dihqan, on the authority of Durost ibn Abi Mansoor, on the authority of Ibrahim ibn Abdul-Hamid, on the authority of Abil Hassan - the first (i.e. Al-Kadhim) (MGB),

“Nine things cause forgetfulness: eating sour apples; eating coriander and cheese; eating remainders of mice; urinating in stagnant water; reading the writings on the tombs; going in between two women; killing lice; and cupping at the pit of the head.”