Perform the ablution thoroughly, for Abu Qasim said, "Woe to the heels from the Fire."
أسبغوا الوضوء؛ فإن أبا القاسم قال: ويل للأعقاب من النار.
Bukhari narrated it in the chapter on wudu (165), and this is his wording, and Muslim narrated it in the chapter on purification (242), both of them through Shubah, from Muhammad bin Ziyad, from Abu Hurairah, that he saw some people performing wudu from a water vessel.And in Muslim's version, through Rabi bin Muslim, from Muhammad bin Ziyad, from Abu Hurairah, that the Messenger of Allah ﷺ saw a man who had not washed his heels, and said, "Woe to the heels from the Fire."