Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Saddhāsumanatissa
Saddhāsumanatissa:A monk of Ceylon.He joined the Order after gaining his parent';s (SadS.85f) consent with great,difficulty.Once,when on pilgrimage to Nāgadīpa,he saw an assembly of monks,and,moved by the sight, sat,under a tree and developed arahantship.