At Savatthi. Standing to one side, that devatā recited this verse in the presence of the Blessed One:

“How many are asleep when others are awake?
How many are awake when others sleep?
By how many does one gather dust?
By how many is one purified?”

The Blessed One:

“Five are asleep when others are awake;
Five are awake when others sleep.
By five things one gathers dust,
By five things one is purified.”