Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Udakadāyikā Therī
Udakadāyikā Therī:An arahant.In a previous birth she was a water-carrier and maintained her children on her wages.Having nothing else to give,she regularly provided water in a bath for others.As a result,she was born in heaven and was fifty times queen of the deva-king and twenty times queen of kings on earth.She could produce rain at will,and her body knew neither heat nor dirt.Ap.ii.521-2.