Narrated Ibn Shihab:
Mahmud bin Ar-Rabi’ who was the person on whose face the Prophet had ejected a mouthful of water from his family’s well while he was a boy, and ‘Urwa (on the authority of Al-Miswar and others) who testified each other, said, “Whenever the Prophet , performed ablution, his companions were nearly fighting for the remains of the water.”
Reference: Got Kids Around You? Do Read!
And why wouldn’t people fight over such a blessed thing? We all want barkah in our lives. :)