Chapter on Tayammum and Its Rules
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 8
وَ أَخْبَرَنِي اَلشَّيْخُ أَيَّدَهُ اَللَّهُ تَعَالَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ أَبِيهِ عَنْ مُحَمَّدِ بْنِ اَلْحَسَنِ اَلصَّفَّارِ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ اَلْحُسَيْنِ بْنِ سَعِيدٍ عَنْ حَمَّادٍ عَنْ حَرِيزٍ عَنْ زُرَارَةَ وَ مُحَمَّدِ بْنِ مُسْلِمٍ قَالَ: قُلْتُ فِي رَجُلٍ لَمْ يُصِبِ اَلْمَاءَ وَ حَضَرَتِ اَلصَّلاَةُ فَتَيَمَّمَ وَ صَلَّى رَكْعَتَيْنِ ثُمَّ أَصَابَ اَلْمَاءَ أَ يَنْقُضُ اَلرَّكْعَتَيْنِ أَوْ يَقْطَعُهُمَا وَ يَتَوَضَّأُ ثُمَّ يُصَلِّي قَالَ« لاَ وَ لَكِنَّهُ يَمْضِي فِي صَلاَتِهِ وَ لاَ يَنْقُضُهَا لِمَكَانِ أَنَّهُ دَخَلَهَا وَ هُوَ عَلَى طَهُورٍ بِتَيَمُّمٍ» قَالَ زُرَارَةُ فَقُلْتُ لَهُ دَخَلَهَا وَ هُوَ مُتَيَمِّمٌ فَصَلَّى رَكْعَةً وَ أَحْدَثَ فَأَصَابَ مَاءً قَالَ« يَخْرُجُ وَ يَتَوَضَّأُ وَ يَبْنِي عَلَى مَا مَضَى مِنْ صَلاَتِهِ اَلَّتِي صَلَّى بِالتَّيَمُّمِ».
Muhammad, from his father, from Muhammad ibn al-Hasan al-Saffar, from Ahmad ibn Muhammad ibn Isa, from al-Husayn ibn Sa‘id, from Hammad, from Hariz, from Zurara and Muhammad ibn Muslim.
I said: "What about a man who does not find water, and the time for prayer arrives, so he performs tayammum and prays two rak‘ahs, then finds water? Should he nullify the two rak‘ahs or stop them, perform ablution, and then pray?" Imam عليه السلام said: "No, rather he should continue his prayer and not nullify it because he started it while in a state of purification by tayammum." Zurara said: "I asked Imam عليه السلام: What if he entered the prayer with tayammum, prayed one rak‘ah, then invalidated his purification and found water?" Imam عليه السلام said: "He should leave, perform ablution, and continue from where he left off in the prayer he had started with tayammum."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 216
- Ṣaḥīḥ al-Tahdhīb, p. 104