Kāmil al-Ziyārāt > The Ziyārah of Ĥusain (a.s.) Is Obligatory and Every Believer Should Fulfill this Obligation Toward Ĥusain and the Rest of the Imams (a.s.)
Hadith #1

1 حَدَّثَنِي أَبِي وَ مُحَمَّدُ بْنُ الْحَسَنِ عَنِ الْحَسَنِ بْنِ مَتِّيلٍ وَ قَالَ مُحَمَّدُ بْنُ الْحَسَنِ وَ حَدَّثَنِي مُحَمَّدُ بْنُ الْحَسَنِ الصَّفَّارُ جَمِيعاً عَنْ أَحْمَدَ بْنِ أَبِي عَبْدِ اللَّهِ الْبَرْقِيِّ قَالَ حَدَّثَنَا الْحَسَنُ بْنُ عَلِيِّ بْنِ فَضَّالٍ قَالَ حَدَّثَنِي أَبُو أَيُّوبَ إِبْرَاهِيمُ بْنُ عُثْمَانَ الْخَزَّازُ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِي جَعْفَرٍ (ع) قَالَ مُرُوا شِيعَتَنَا بِزِيَارَةِ قَبْرِ الْحُسَيْنِ (ع) فَإِنَّ إِتْيَانَهُ مُفْتَرَضٌ عَلَى كُلِّ مُؤْمِنٍ- يُقِرُّ لِلْحُسَيْنِ (ع) بِالْإِمَامَةِ مِنَ اللَّهِ عَزَّ وَ جَلَّ

1. My father and Muĥammad ibn Ĥasan both narrated to me from Ĥasan ibn Mattǐl, and from Muĥammad ibn Ĥasan Al-Šaffār, from Aĥmad ibn Abǐ ‘Abdillāh Al-Barqi, from Ĥasan ibn ‘Ali ibn Faďďāl, from Abǐ Ayyūb Ibrāhǐm ibn ‘Uthmān Al-Kazzāz, from Muĥammad ibn Muslim, who said: Abū Ja’far (Imam Bāqir (a.s.)) said: Order our Shia to go to the Ziyārah of the grave of Ĥusain (a.s.). Verily going to his Ziyārah is obligatory on every believer who testifies that Ĥusain (a.s.) is an Imam appointed by Allāh, the Great and Almighty.