Sahih Muslim Book 40, Hadith Number 6851.
Chapter : The description of the Day of Resurrection (May Allah save us from its terrors).
Abu Huraira reported Allah’s Messenger (may peace be upon him) as saying: The perspiration would spread on the Day of Resurrection upon the earth to the extent of seventy cubits and it would reach up to their mouths or up to their ears. Thaur is not sure (which words) he used (mouth or ears).