٤ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ مُحَمَّدِ بْنِ حَسَنِ بْنِ شَمُّونٍ قَالَ حَدَّثَنِي عَلِيُّ بْنُ مُحَمَّدٍ النَّوْفَلِيُّ عَنْ أَبِي الْحَسَنِ (عَلَيهِ السَّلام) قَالَ ذَكَرْتُ الصَّوْتَ عِنْدَهُ فَقَالَ إِنَّ عَلِيَّ بْنَ الْحُسَيْنِ (عَلَيهِما السَّلام) كَانَ يَقْرَأُ فَرُبَّمَا مَرَّ بِهِ الْمَارُّ فَصَعِقَ مِنْ حُسْنِ صَوْتِهِ وَإِنَّ الإمَامَ لَوْ أَظْهَرَ مِنْ ذَلِكَ شَيْئاً لَمَا احْتَمَلَهُ النَّاسُ مِنْ حُسْنِهِ قُلْتُ وَلَمْ يَكُنْ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وآلِه) يُصَلِّي بِالنَّاسِ وَيَرْفَعُ صَوْتَهُ بِالْقُرْآنِ فَقَالَ إِنَّ رَسُولَ الله (صَلَّى اللهُ عَلَيْهِ وآلِه) كَانَ يُحَمِّلُ النَّاسَ مِنْ خَلْفِهِ مَا يُطِيقُونَ.
4. A number of our people have narrated from Sahl ibn Ziyad from Muhammad ibn Hassan ibn Shammun who has that narrated to him Ali ibn Muhammad al- Nawfali from abu al-Hassan  who has said the following: “Once accents and voices were mentioned before abu al- Hassan  and he said, ‘Once Ali ibn al-Husayn  was reading and someone passing by suffered a shock due to the beauty of his voice. If the Imam were to manifest such reading people could not bear its beauty.’ I (the narrator) then said, ‘The Messenger of Allah during his prayer would not raise his voice in reading the Holy Quran.’ The Imam said, ‘The Messenger of Allah would make people behind him do only what they could tolerate.’” 