و ما كان فيه عن محمّد بن خالد البرقيّ فقد رويته عن محمّد بن الحسن- رضي اللّه عنه- عن محمّد بن الحسن الصفّار، عن محمّد بن خالد البرقيّ.
Everything in this book that is narrated from Muhammad ibn Khalid Al-Barqi has been transmitted by me from Muhammad ibn Al-Hasan - may Allah (swt) be pleased with him - from Muhammad ibn Al-Hasan Al-Saffar, from Muhammad ibn Khalid Al-Barqi.