(1) باب المياه
And Al-Baihaqi reported:
"Water is pure unless any impure thing is added which changes its smell, taste and colour". (ES)
Reference (ES): Bulugh al-Maram 4 (ES)
In-book reference (ES): Book 1, Hadith 4 (ES)
English translation (ES): Book 1, Hadith 4 (ES)