Everything in this book that is narrated from Dawud ibn Surhan has been transmitted by me from my father and from Muhammad ibn Al-Hasan - may Allah (swt) have mercy on them both - from Sa'd ibn Abdullah, from Ahmad ibn Muhammad ibn 'Isa, from Ahmad ibn Muhammad ibn Abi Nasr Al-Bazanti and Abdur Rahman ibn Abi Najran, from Dawud ibn Surhan Al-'Attar Al-Kufi.