Wash your hands three times after waking up from sleep.

This hadith emphasizes the importance of washing one's hands before eating. It was narrated by Abu Hurairah that the Prophet Muhammad said that when someone wakes up from sleep they should not put their hand into a vessel until they have washed it three times. This is because one does not know where their hand has been while sleeping and thus it is important to wash it in order to maintain hygiene and cleanliness. It is also a reminder for us to be mindful of our actions and take care of our health by following simple practices such as washing our hands regularly.