28-17 (The author of the book narrated) my father - may God be pleased with him - narrated that Sa’d ibn Abdullah quoted on the authority of Muhammad ibn Isa, on the authority of Al-Qasim ibn Yahya, on the authority of his grandfather (Abu Ali al-Hasan bin Rashid), on the authority of Yaqoob al-Ja’fari that he had heard Abul Hassan (s) say, “It is fine to withdraw in six cases (during intercourse): from a woman you are sure she will not get pregnant; an old woman; a lewd woman; a shameless woman; a woman who will not nurse her child; and a slave woman.”The author of this book (Sheikh Sadooq) said, “Abul Hassan in this tradition may refer to Musa ibn Ja’far (s) or Al-Ridha (s) since Yaqoob al-Ja’fari lived at the time of both of them.”