Hadith 10:479
Abu Bakr narrated to us, he said: Abd al-Salam ibn Harb narrated to us, from Khusayf, from Sa'id ibn Jubayr, regarding a man who says to his wife, "You are unlawful to me." He said: He must free a slave. And if he said that to four [wives], then [he must free] four slaves.
حدثنا أبو بكر قال نا عبد السلام بن حرب عن خصيف عن سعيد بن جبير في الرجل يقول لأمرأته أنت علي حرام قال يعتق رقبة وإن قال ذلك لأربع فأربع رقاب