sei advaya-tattva krsna--svayam-bhagavan
tina-kale satya tinho--sastra-pramana
sei—that; advaya-tattva—Absolute Truth without a second; krsna—Lord Krsna; svayam-bhagavan—the Supreme Personality of Godhead; tina-kale—in three phases of time (past, present and future); satya—truth; tinho—He; sastra-pramana—the verdict of all Vedic literature.
"That Absolute Truth without a second is Lord Krsna, the Supreme Personality of Godhead. He is the supreme truth in the past, present and future. That is the evidence of all revealed scriptures.
Link to this page: https://prabhupadabooks.com/cc/madhya/24/75