٥ حَدَّثَنِي أَبِي (رحمه الله) عَنْ سَعْدِ بْنِ عَبْدِ اللَّهِ عَنْ يَعْقُوبَ بْنِ يَزِيدَ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ بَعْضِ أَصْحَابِنَا عَنِ ابْنِ أَبِي نَابٍ عَنْ أَبِي عَبْدِ اللَّهِ (ع) قَالَ حَقٌّ عَلَى الْفَقِيرِ أَنْ يَأْتِيَ قَبْرَ الْحُسَيْنِ (ع) فِي السَّنَةِ مَرَّةً وَ حَقٌّ عَلَى الْغَنِيِّ أَنْ يَأْتِيَهُ فِي السَّنَةِ مَرَّتَيْنِ
5. My father narrated to me from Sa’d ibn ‘Abdillāh, from Ya’qūb ibn Yazǐd, from Ibn Abǐ ‘Umayr, from some of our companions, from Ibn Abǐ Nāb, who said: Abū ‘Abdillāh (Imam Šādiq ) said: It is an obligation on those who are poor to go to (the Ziyārah of) the grave of Ĥusain  once a year and on those who are wealthy to go twice a year.