The Ziyārah of Ĥusain عليه السلام Is Obligatory and Every Believer Should Fulfill this Obligation Toward Ĥusain and the Rest of the Imams عليه السلام

1. My father and Muḥammad ibn Ḥasan both narrated to me from Ḥasan ibn Mattīl, and from Muḥammad ibn Ḥasan Al-Saffār, from Aḥmad ibn Abī ‘Abdillāh Al-Barqi, from Ḥasan ibn ‘Ali ibn Faďďāl, from Abī Ayyūb Ibrāhīm ibn ‘Uthmān Al-Kazzāz, from Muḥammad ibn Muslim, who said: Abū Ja’far (Imam Bāqir عليه السلام) said: Order our Shia to go to the Ziyārah of the grave of Ḥusain عليه السلام. Verily going to his Ziyārah is obligatory on every believer who testifies that Ḥusain عليه السلام is an Imam appointed by Allāh, the Great and Almighty.