מדרש אויף דברים 24:7

(Exodus 21:16) "And one who steals a man and sells him": What is the intent of this? From (Devarim 24:7) "If a man be found (by witnesses) to have stolen a soul of his brothers, etc." I know only of (the necessity for) witnesses to the stealing. Whence do I derive (the same for) witnesses to the selling? From "And one who steals a man and sells him."

This ("If a man be found") tells me only of a man who stole. Whence do I derive (the same for) a woman who stole? From "And one who steals a man." This tells me only of a man or a woman who stole a man, and a man who stole a woman or a minor. Whence do I derive (the same for) a woman who stole her neighbor (woman) or a minor? From (Devarim, Ibid.) "Then that thief (man or woman) shall die."

"And one who steals a man": This tells me only of one who steals a man. Whence do I derive (the same for) one who steals a woman or a minor? From "If a man be found to have stolen a soul of his brothers" — to include his stealing a woman or a minor.