CC Madhya 25.240

madhya-līlāra kariluṅ ei dig-daraśana
chaya vatsara kailā yaiche gamanāgamana
Word for word: 
madhya-līlāra — of this division, known as Madhya-līlā; kariluṅ — I have done; ei dik-daraśana — this summary inspection; chaya vatsara — continuously for six years; kailā — performed; yaiche — just as; gamana-āgamana — going and coming back.
Translation: 
I have thus given a summary description of the madhya-līlā, Śrī Caitanya Mahāprabhu’s travels to and from Jagannātha Purī. Indeed, the Lord traveled to and fro continuously for six years.