22-7 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted Yaqoob ibn Yazid, on the authority of Muhammad ibn Ibrahim, on the authority of Al-Hussein ibn al-Mukhtar who linked it up through a chain of narrators to Salman - may God have Mercy upon him,

“If one takes a female slave and doesn’t have sex with her once every forty days resulting in her committing a forbidden act, he would be held responsible for her sin.”