Chapter on Tayammum (dry ablution) and Its Rules
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 20
اَلْحُسَيْنُ عَنِ اَلنَّضْرِ عَنِ اِبْنِ سِنَانٍ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ أَنَّهُ قَالَ: فِي رَجُلٍ أَصَابَتْهُ جَنَابَةٌ فِي اَلسَّفَرِ وَ لَيْسَ مَعَهُ إِلاَّ مَاءٌ قَلِيلٌ يَخَافُ إِنْ هُوَ اِغْتَسَلَ أَنْ يَعْطَشَ قَالَ« إِنْ خَافَ عَطَشاً فَلاَ يُهْرِقْ مِنْهُ قَطْرَةً وَ لْيَتَيَمَّمْ بِالصَّعِيدِ فَإِنَّ اَلصَّعِيدَ أَحَبُّ إِلَيَّ».
Al-Husayn, from Al-Nadr, from Ibn Sinan, narrated from Abu Abdullah عليه السلام:
Imam عليه السلام was asked about a man who experienced janabah (major ritual impurity) while on a journey and had only a small amount of water, fearing that if he performed ghusl (ritual purification), he would become thirsty. Imam عليه السلام said: "If he fears thirst, then he should not spill a single drop of it and should instead perform tayammum (dry ablution) with the earth, for the earth is more beloved to me."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 428
- Ṣaḥīḥ al-Tahdhīb, p. 105