Everything in this book that is narrated from Ishaq ibn Burayd has been transmitted by me from Muhammad ibn Musa ibn Al-Mutawakkil - may Allah (swt) be pleased with him - from Ali ibn Al-Husayn Al-Sadabadi, from Ahmad ibn Abi Abdullah Al-Barqi, from Ahmad ibn Muhammad ibn Abi Nasr Al-Bazanti, from Al-Muthanna ibn Al-Walid, from Ishaq ibn Burayd.