Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Udakapūjaka Thera
Udakapūjaka Thera:An arahant.In a previous birth he saw Padumuttara Buddha journeying through the air and wished to offer him some water.He,therefore,threw some water into the air,which the Buddha,out of compassion,stopped to receive.
Sixty-five kappas ago Udakapūjaka became king three times under the name of Sahassarāja (Ap.i.142-3).
He is probably identical with Kutivihāriya Thera.ThagA.i.129.