7-83 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Ahmad ibn Idris quoted Muhammad ibn Ahmad, on the authority of Abu Abdullah Al-Razi, on the authority of Muhammad ibn Abdullah, on the authority of Ibrahim ibn Aqabah, on the authority of Zakariya, on the authority of his father, on the authority of Yahya that Abu Abdullah as-Sadiq (MGB) said, “
God would fend off poverty from whoever cuts his nails on Thursdays and leaves one to be cut off on Fridays.”