Water; Its Purity and Impurity
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 2
وَ سُئِلَ عَلِيٌّ عَلَيْهِ اَلسَّلاَمُ أَ يُتَوَضَّأُ مِنْ فَضْلِ وَضُوءِ جَمَاعَةِ اَلْمُسْلِمِينَ أَحَبُّ إِلَيْكَ أَوْ يُتَوَضَّأُ مِنْ رَكْوٍ أَبْيَضَ مُخَمَّرٍ فَقَالَ «لاَ بَلْ مِنْ فَضْلِ وَضُوءِ جَمَاعَةِ اَلْمُسْلِمِينَ فَإِنَّ أَحَبَّ دِينِكُمْ إِلَى اَللَّهِ اَلْحَنِيفِيَّةُ اَلسَّمْحَةُ اَلسَّهْلَةُ.
Ameerul Momineen Imam Ali ibn Abi Talib عليه السلام was asked: "Is it better to perform ablution from the leftover water of a group of Muslims, or from a covered white jug?" Imam عليه السلام said: "No, rather from the leftover water of the group of Muslims, for the most beloved aspect of your religion to Allah سبحانه وتعالى is the tolerant and agreeable monotheism."
- Ṣaḥīḥ al-Faqīh