The Complete Pilgrimage Guide · Hadith 358 (#Ḥadīth #9)

9 وَ حَدَّثَنِي مُحَمَّدُ بْنُ جَعْفَرٍ عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ قائد [فَائِدٍ عَنْ أَبِي الْحَسَنِ الْأَوَّلِ (ع) قَالَ مَنْ أَتَى قَبْرَ الْحُسَيْنِ (ع) عَارِفاً بِحَقِّهِ غَفَرَ [اللَّهُ] لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ وَ مَا تَأَخَّرَ

9. Muḥammad ibn Ja’far narrated to me from Muḥammad ibn Ḥusain, from Qā`id, who said: Abul Ḥasan the First (Imam Kāżim ) 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).