The Complete Pilgrimage Guide · Hadith 353 (#Ḥadīth #4)

4 وَ حَدَّثَنِي أَبُو الْعَبَّاسِ عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ صَفْوَانَ بْنِ يَحْيَى عَنِ ابْنِ مُسْكَانَ عَنْ أَبِي عَبْدِ اللَّهِ (ع) قَالَ مَنْ أَتَى قَبْرَ الْحُسَيْنِ (ع) عَارِفاً بِحَقِّهِ غَفَرَ [اللَّهُ] لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ وَ مَا تَأَخَّرَ

4. Abul ‘Abbās narrated to me from Muḥammad ibn Ḥusain, from Safwān ibn Yaḥyā, from Ibn Muskān, who said: Abū ‘Abdillāh (Imam Sādiq ) said: Allāh will forgive all of the past and future sins of those who go to (the Ziyārah of) the grave of Ḥusain knowing his rights.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).