CC Antya 14.101

ei-mata bahu-bāra kīrtana karite
‘hari-bola’ bali’ prabhu uṭhe ācambite
Synonyms: 
ei-mata — in this way; bahu-bāra — for a long time; kīrtana karite — chanting; hari-bola bali’ — uttering “Haribol”; prabhu — Śrī Caitanya Mahāprabhu; uṭhe — stands up; ācambite — suddenly.
Translation: 
After the devotees had been chanting for a long time, Śrī Caitanya Mahāprabhu suddenly stood up and shouted, “Haribol!”