CC Madhya 13.87

prabhu-pāche bule ācārya kariyā huṅkāra
‘hari-bola’ ‘hari-bola’ bale bāra bāra
Word for word: 
prabhu-pāche — behind the Lord; bule — was walking; ācārya — Advaita Ācārya; kariyā — making; huṅkāra — a loud vibration; hari-bola hari-bola — chant the holy name of Hari; bale — says; bāra bāra — again and again.
Translation: 
Advaita Ācārya would walk behind the Lord and loudly chant “Haribol! Haribol!” again and again.