مُحَمَّدُ بْنُ إِسْمَاعِيلَ عَنِ الْفَضْلِ بْنِ شَاذَانَ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ إِبْرَاهِيمَ بْنِ عَبْدِ الْحَمِيدِ عَنْ أَبِي الْحَسَنِ الرِّضَا صَلَوَاتُ اللَّهِ عَلَيْهِ قَالَ:
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سَأَلْتُهُ عَنِ الرَّجُلِ يَجْعَلُ لِلَّهِ عَزَّ وَ جَلَّ عَلَيْهِ صَوْمَ يَوْمٍ مُسَمًّى قَالَ يَصُومُهُ أَبَداً فِي السَّفَرِ وَ الْحَضَرِ.
Read English translationHide English translationMuhammad Sarwar — attributed by Thaqalayn
9. Muhammad ibn ‘Isma‘il has narrated from al-Fadl ibn Shadhan from Ibn Abi ‘Umayr from Ibrahim ibn ‘Abd al-Hamid who has said the following: “I once asked abu al-Hassan, al-Rida’ (a.s.), about a man who places upon himself for Allah, most Majestic, most Glorious, fasting of a definite day. He (the Imam) said, ‘He is required to fast definitely, regardless of being on a journey or at home.’”
Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.
Hadith gradings
1- مجهول كالموثقAllamah Baqir al-MajlisiMirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (16/353)