Everything in this book that is narrated from Ibrahim ibn Abdul Hamid has been transmitted by me from Muhammad ibn Al-Hasan - may Allah سبحانه وتعالى be pleased with him - from Muhammad ibn Al-Hasan Al-Saffar, from Al-Abbas ibn Ma'ruf, from Sadan ibn Muslim, from Ibrahim ibn Abdul Hamid Al-Kufi. I have also narrated it from my father - may Allah سبحانه وتعالى be pleased with him - from Ali ibn Ibrahim ibn Hashim, from his father, from Ibn Abi Umayr, from Ibrahim ibn Abdul Hamid.