Wahb ibn Khalid reported from Sayyidah Urnm Habibah bint Irbad ibn Sariyah on the authority of her father that Allah’s Messenger (SAW) forbade on the day of Khaybar every carnivorous beast with cannine teeth (with a fang), every bird with a claw, flesh of domestic asses, the mujaththamah and khalisah, and sexual intercourse with pregnant slavewomen till they have given birth to their child, Muhammad ibn Yahya said that this means that sexual intercourse must not be had with women who are not pregnant before they menstruate. Abu Aasim was asked about mujaththamah and he said: a bird or something is tied up and targetted. And he was asked about khalisah and he said; an animal snatched by a man from a wolf or a beast of prey but it dies before he can slaughter it.
[Ahmed 17153]