KJV: And the LORD called Samuel again the third time. And he arose and went to Eli, and said, Here am I; for thou didst call me. And Eli perceived that the LORD had called the child.
NASB: So the LORD called Samuel again for the third time. And he arose and went to Eli and said, "Here I am, for you called me." Then Eli discerned that the LORD was calling the boy.
KJV: Therefore Eli said unto Samuel, Go, lie down: and it shall be, if he call thee, that thou shalt say, Speak, LORD; for thy servant heareth. So Samuel went and lay down in his place.
NASB: And Eli said to Samuel, "Go lie down, and it shall be if He calls you, that you shall say, 'Speak, LORD, for Your servant is listening.'" So Samuel went and lay down in his place.