It is narrated that Ibn 'Umar said:
"The Messenger of Allah saw a man performing ablution, and he said: 'Do not be extravagant, do not be extravagant (in using water).'" (Maudu') (DE)
English reference (DE): Vol. 1, Book 1, Hadith 424 (DE)
Arabic reference (DE): Book 1, Hadith 459 (DE)