The Complete Pilgrimage Guide · Hadith 621 (#Ḥadīth #3)

3 وَ حَدَّثَنِي أَبِي عَنْ سَعْدِ بْنِ عَبْدِ اللَّهِ عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ مُحَمَّدِ بْنِ إِسْمَاعِيلَ الْبَصْرِيِّ وَ لَقَبُهُ فَهْدٌ عَنْ بَعْضِ رِجَالِهِ عَنْ أَبِي عَبْدِ اللَّهِ (ع) قَالَ طِينُ قَبْرِ الْحُسَيْنِ (ع) شِفَاءٌ مِنْ كُلِّ دَاءٍ

3. My father narrated to me from Sa’d ibn ‘Abdillāh, from Aḥmad ibn Ḥusain ibn Sa’īd, from his father, from Muḥammad ibn Sulaymān Al-Basri, from his father, who said: Abū ‘Abdillāh (Imam Sādiq ) said: The cure for every disease is in the clay of the grave of Ḥusain and it is the greatest medicine.

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