Cakkavattisutta 5.11

5.11

Tassa ariye cakkavattivatte vattamānassa tadahuposathe pannarase sīsaṃnhātassa uposathikassa uparipāsādavaragatassa

While he was proceeding in that duty, on a fifteenth day sabbath, he had bathed his head and gone upstairs in the royal longhouse to observe the sabbath.