1 Kings 1:52 in the King James Version
And Solomon said, If he will shew himself a worthy man, there shall not an hair of him fall to the earth: but if wickedness shall be found in him, he shall die.
Context
51 Solomon was told, “Behold, Adonijah fears King Solomon; for, behold, he is hanging onto the horns of the altar, saying, ‘Let King Solomon swear to me first that he will not kill his servant with the sword.’”
52 Solomon said, “If he shows himself a worthy man, not a hair of his shall fall to the earth; but if wickedness is found in him, he shall die.”
53 So King Solomon sent, and they brought him down from the altar. He came and bowed down to King Solomon; and Solomon said to him, “Go to your house.”