Chapter on Rules of Janabah and Methods of Purification
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 6
وَ سَأَلَ عَلِيُّ بْنُ جَعْفَرٍ أَخَاهُ مُوسَى بْنَ جَعْفَرٍ عَلَيْهِمَا اَلسَّلاَمُ: عَنِ اَلرَّجُلِ أَ يَحِلُّ لَهُ أَنْ يَكْتُبَ اَلْقُرْآنَ فِي اَلْأَلْوَاحِ وَ اَلصَّحِيفَةِ وَ هُوَ عَلَى غَيْرِ وُضُوءٍ قَالَ« لاَ».
Ali ibn Ja'far asked his brother Imam Musa ibn Ja'far عليه السلام regarding a man, if it is permissible for him to write the Quran on tablets or sheets while not in a state of ablution? Imam عليه السلام said: "No."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 133
- Ṣaḥīḥ al-Tahdhīb