Ablution with nabidh
Sayyidina Abdullah ibn Mas'ud (RA) said that Allah's Messenger (SAW) asked him
"What do you have in your skin vessel?" He said that he had nabidh. The Prophet (SAW)
said "Dates are pure and purify water." Then, he performed ablution with it.
[Ahmed4296, Abu Dawud 84, Ibn e Majah 384]