A monk of Kutumbiya Vihāra. Having heard the Satipatthāna Sutta from Tissa Thera of Ambalena, he was on his way back when he met a wild elephant. By his virtue the elephant was subdued und Tissamahānāga took shelter from a storm under the elephant's body. There he developed arahantship. He then went to Viyolaka-Vihāra mit the elephant, und for thirty years the animal waited on him.
After death the monk's remains were cremated at Kutumbiya Vihāra, und the elephant participated in the celebrations. Ras.ii.185f.