Chapter on the Recommended Prayers
Tahdhīb al-Aḥkām|Volume 3|Book 2|Chapter 9
سَهْلُ بْنُ زِيَادٍ عَنْ عَلِيِّ بْنِ اَلْحَكَمِ عَنْ مُثَنًّى اَلْحَنَّاطِ عَنْ أَبِي بَصِيرٍ قَالَ سَمِعْتُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ يَقُولُ: «مَنْ صَلَّى أَرْبَعَ رَكَعَاتٍ بِمِائَتَيْ مَرَّةٍ قُلْ هُوَ اَللَّهُ أَحَدٌ فِي كُلِّ رَكْعَةٍ خَمْسِينَ مَرَّةً لَمْ يَنْفَتِلْ وَ بَيْنَهُ وَ بَيْنَ اَللَّهِ عَزَّ وَ جَلَّ ذَنْبٌ إِلاَّ غُفِرَ لَهُ»
Sahl ibn Ziyad from Ali ibn al-Hakam from Muthanna al-Hannat from Abu Basir who said:
I heard Abu Abdillah عليه السلام, peace be upon him, say: “Whoever prays four rak‘ahs with two hundred recitations of ‘Qul huwa Allahu Ahad’ (Surah Ikhlas); fifty times in each rak‘ah, will not finish the prayer while there remains between him and Allah سبحانه وتعالى, the Mighty and Majestic, a single sin except that it is forgiven for him.”
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 3, p. 342
- Ṣaḥīḥ al-Tahdhīb