مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ صَفْوَانَ عَنِ ابْنِ بُكَيْرٍ عَنْ زُرَارَةَ عَنْ أَبِي جَعْفَرٍ ع قَالَ:
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إِنَّمَا يُكْرَهُ أَنْ يُجْمَعَ بَيْنَ السُّورَتَيْنِ فِي الْفَرِيضَةِ فَأَمَّا النَّافِلَةُ فَلَا بَأْسَ.
Read English translationHide English translationMuhammad Sarwar — attributed by Thaqalayn
10. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Safwan from ibn Bukayr from Zurarah who has said the following: “Abu Ja’far (a.s.), has said, ‘It is undesirable to recite two Surah (chapters) together in an obligatory Salah (prayer) but in an optional one it is not harmful.’” (Ahadith 7-11 are best explained in the form of fatwa.)
Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.
Hadith gradings
1- موثقAllamah Baqir al-MajlisiMirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/109)