"Man, I do not know what you are talking about," Peter replied. While he was still speaking, the rooster crowed.

Matthew 26:34
"Truly I tell you," Jesus declared, "this very night, before the rooster crows, you will deny Me three times."

Matthew 26:74
At that he began to curse and swear to them, "I do not know the man!" And immediately a rooster crowed.

Luke 22:59
About an hour later, another man insisted, "Certainly this man was with Him, for he too is a Galilean."

Luke 22:61
And the Lord turned and looked at Peter. Then Peter remembered the word that the Lord had spoken to him: "Before the rooster crows today, you will deny Me three times."

And Peter said, Man, I know not what you say. And immediately, while he yet spoke, the cock crew.