Clarification of the Transmission Chain to Al-Fadl Ibn Shadhan Regarding the Causes (reasons) Mentioned From Imam Al-Ridha {a.s}

Everything in this book that is narrated from Al-Fadl ibn Shadhan regarding the causes (reasons) he mentioned from Imam Al-Ridha (as) has been transmitted by me from Abdul Wahid ibn Abduws Al-Naysaburi Al-Attar - may Allah (swt) be pleased with him - from Ali ibn Muhammad ibn Qutaybah, from Al-Fadl ibn Shadhan Al-Naysaburi, from Imam Al-Ridha (as).