CC Madhya 9.324

prabhu kahe, — tumi yei siddhānta kahile
ei dui puṅthi sei saba sākṣī dile
Word for word: 
prabhu kahe — the Lord said; tumi — you; yei — whatever; siddhānta — conclusion; kahile — informed; ei dui — these two; puṅthi — books; sei — that; saba — everything; sākṣī — evidence; dile — gave.
Translation: 
The Lord said, “Whatever you have told Me about devotional service is all supported by these two books.”