Maliks Muwatta Book 29, Hadith Number 74.

Section : Deadline of Men who do Not have Intercourse with Their Wives.

Yahya related to me from Malik from Ibn Shihab that Said ibn al-Musayyab said, “If someone marries a woman and cannot have intercourse with her, there is a deadline of a year set for him to have intercourse with her. If he does not, they are separated.”