Everything in this book that is narrated from Muhammad ibn Al-Qasim ibn Al-Fudayl Al-Basri, the companion of Al-Ridha عليه السلام, has been transmitted by me from Al-Husayn ibn Ibrahim - may Allah سبحانه وتعالى be pleased with him - from Ali ibn Ibrahim, from his father, from Amr ibn Uthman, from Muhammad ibn Al-Qasim ibn Al-Fudayl Al-Basri.