CC Ādi 5.126

e-saba pramāṇe jāni nityānanda-tattva-sīmā
tāṅhāke ‘ananta’ kahi, ki tāṅra mahimā
Synonyms: 
e-saba — all these; pramāṇe — by the evidences; jāni — I know; nityānanda-tattva-sīmā — the limit of the truth of Lord Nityānanda; tāṅhāke — to Him (Lord Nityānanda, Balarāma); ananta — Lord Ananta; kahi — if I say; ki tāṅre mahimā — what glory do I speak about Him.
Translation: 
From these conclusions we can know the limit of the truth of Lord Nityānanda. But what glory is there in calling Him Ananta?