The Complete Pilgrimage Guide · Hadith 385 (#Ḥadīth #4)
Chapter 58 | The Ziyārah of Ĥusain : The Best of Deeds
4 حَدَّثَنِي أَبُو الْعَبَّاسِ الْكُوفِيُّ عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنِ الْحَسَنِ بْنِ مَحْبُوبٍ عَنْ رَجُلٍ عَنْ أَبَانٍ الْأَزْرَقِ عَنْ رَجُلٍ عَنْ أَبِي عَبْدِ اللَّهِ (ع) قَالَ مِنْ أَحَبِّ الْأَعْمَالِ إِلَى اللَّهِ تَعَالَى زِيَارَةُ قَبْرِ الْحُسَيْنِ (ع) وَ أَفْضَلُ الْأَعْمَالِ عِنْدَ اللَّهِ إِدْخَالُ السُّرُورِ عَلَى الْمُؤْمِنِ وَ أَقْرَبُ مَا يَكُونُ الْعَبْدُ إِلَى اللَّهِ تَعَالَى وَ هُوَ سَاجِدٌ بَاكٍ
4. Abul ‘Abbās Al-Kūfi narrated to me from Muḥammad ibn Ḥusain, from Ḥasan ibn Maḥbūb, from someone, from Abān Al-Azraq, from someone who said: Abū ‘Abdillāh (Imam Sādiq ) said: One of the deeds most loved by Allāh, the Exalted, is going to the Ziyārah of the grave of Ḥusain , and the best deed in the eyes of Allāh is pleasing a believer. And the closest that a slave can be to Allāh, the Exalted, is when he is crying in the state of prostration.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).