Everything in this book that is narrated from Salih ibn Al-Hakam has been transmitted by me from my father - may Allah سبحانه وتعالى be pleased with him - from Sa'd ibn Abdullah, from Muhammad ibn Al-Husayn Abi Al-Khattab, from Ja'far ibn Bashir, from Hammad ibn 'Uthman, from Salih ibn Al-Hakam Al-Ahwal.