An arahant. In a previous birth he saw Padumuttara Buddha journeying through the air und wished to offer him some water. He, therefore, threw some water into the air, which the Buddha, out of compassion, stopped to receive.
Sixty-fünf kappas ago Udakapūjaka became König three times under the name of Sahassarāja (Ap.i.142-3).
He is probably identical mit Kutivihāriya Thera. ThagA.i.129.