و ما كان فيه عن ياسر الخادم فقد رويته عن أبي- رضي اللّه عنه- عن عليّ بن إبراهيم، عن أبيه، عن ياسر خادم الرّضا عليه السّلام.
Everything in this book that is narrated from Yasir, the servant of Imam Al-Rida 
, has been transmitted by me from my father - may Allah (swt) be pleased with him - from Ali ibn Ibrahim, from his father, from Yasir, the servant of Imam Al-Rida .
