Mishkat al-Masabih #368

‘Abdallah b. ‘Amr said: We returned from Mecca to Medina with God’s messenger, and when we came to some water on the way some of the people hurriedly performed ablution at the time of the afternoon prayer; but they were too hasty, and when we reached them their heels were dry, no water having touched them. God’s messenger therefore said, “Woe to the heels because of hell! Complete the ablution.” Muslim transmitted it.