Musannaf Ibn Abi Shaybah 30779 — A man who divorces his wife and then

Mughirah said that Ibrahim said: When a man gives his wife three divorces and then denies his child while he does not hold the right to take her back, he is to be flogged and that child is to be attached to him. And when he denies his child while he does hold the right to take her back, he is to perform mutual imprecation (li'an), and that child is to be denied from him, even if he has never acknowledged him.