Everything in this book that is narrated from Dawud Al-Raqqi has been transmitted by me from Al-Husayn ibn Ahmad ibn Idris - may Allah سبحانه وتعالى be pleased with him - from his father, from Muhammad ibn Ahmad ibn Abdullah ibn Ahmad Al-Razi, from Hariz ibn Salih, from Ismail ibn Mihran, from Zakariyya ibn Adam, from Dawud ibn Kathir Al-Raqqi. It has been narrated from Al-Sadiq - peace be upon him - that he said: "Place Dawud Al-Raqqi in the same position with me as Al-Miqdad was with the Messenger of Allah سبحانه وتعالى - peace and blessings be upon him and his family."