CC Madhya 17.21

pūrva-rātrye jagannātha dekhi’ ‘ājñā’ lañā
śeṣa-rātre uṭhi’ prabhu calilā lukāñā
Word for word: 
pūrva-rātrye — on the previous night; jagannātha dekhi’ — seeing Lord Jagannātha; ājñā lañā — taking permission; śeṣa-rātre — near the end of night; uṭhi’ — rising; prabhu — Śrī Caitanya Mahāprabhu; calilā — started; lukāñā — without being seen.
Translation: 
On the previous night, Śrī Caitanya Mahāprabhu had visited Lord Jagannātha and taken His permission. Now, near the end of the night, the Lord got up and started immediately. He was not seen by others.