tataḥ—thereafter; ūrdhvam—after mother Sītā's going into the earth; brahmacaryam—complete celibacy; dhārayan—observing; ajuhot—performed a ritualistic ceremony and sacrifice; prabhuḥ—Lord Rāmacandra; trayodaśa-abda-sāhasram—for thirteen thousand years; agnihotram—the sacrifice known as Agnihotra-yajña; akhaṇḍitam—without ceasing.