عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ عَنْ بَعْضِ أَصْحَابِنَا عَنْ أَبِي عَبْدِ اللَّهِ ع قَالَ:
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سَأَلَهُ رَجُلٌ فِي الْمَسْجِدِ الْحَرَامِ مَنْ أَعْظَمُ النَّاسِ وِزْراً فَقَالَ مَنْ يَقِفُ بِهَذَيْنِ الْمَوْقِفَيْنِ عَرَفَةَ وَ الْمُزْدَلِفَةِ وَ سَعَى بَيْنَ هَذَيْنِ الْجَبَلَيْنِ ثُمَّ طَافَ بِهَذَا الْبَيْتِ وَ صَلَّى خَلْفَ مَقَامِ إِبْرَاهِيمَ ع ثُمَّ قَالَ فِي نَفْسِهِ أَوْ ظَنَّ أَنَّ اللَّهَ لَمْ يَغْفِرْ لَهُ فَهُوَ مِنْ أَعْظَمِ النَّاسِ وِزْراً.
Read English translationHide English translationMuhammad Sarwar — attributed by Thaqalayn
7. Ali ibn Ibrahim has narrated from his father from Ahmad ibn Muhammad ibn abu Nasr from certain individuals of our people who has said the following: “A man in Masjid al-Haram (the Sacred Masjid) asked abu ‘Abd Allah, Alayhi al-Salam, about the greatest sin. He (the Imam) replied, ‘If one attends these two places, ‘Arafah and al-Muzdalifah, performs Sa‘y between these two hills, performs Tawaf around this House, performs salat (prayer) behind Maqam of Ibrahim (a.s.) then says to himself or thinks that Allah does not forgive his sins, he has, of all people, sinned the most.’”
Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.
Hadith gradings
1- مرسل كالحسنAllamah Baqir al-MajlisiMirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (8/245)