Al-Kāfi - The Book of Haj

Chapter: The Excellence and Virtue of Visiting Abu Al-Hassan, Musa, ‘Alayhi al-Salam َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنِ الْحَسَنِ بْنِ عَلِيٍّ الْوَشَّاءِ عَنِ الرِّضَا (عَلَيْهِ السَّلاَ٠) قَالَ سَأَلْتُهُ عَنْ زِيَارَةِ قَبْرِ أَبِي الْحَسَنِ (عَلَيْهِ السَّلاَ٠ِثْلُ قَبْرِ الْحُسَيْنِ (عَلَيْهِ السَّلاَ٠2.

Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from al-Hassan ibn Ali al-Washsha’ who has said the following: “I once asked al-Rida’ (a.s.), ‘Is visiting the grave of abu al-Hassan (a.s.), like visiting the grave of al-Husayn (a.s.)?’ He (the Imam) replied, ‘Yes, it is so.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (18/311))