Musannaf Ibn Abi Shayba 9:592

Hushaym narrated to us, from Yunus, from al-Hasan, and from Mughirah, from Ibrahim, they both said: The impotent man is granted a respite from the day he is brought before the authority. Yunus said, from al-Hasan: He is granted a respite of one year. And Mughirah said, from Ibrahim: I do not memorize the time, but he is granted a respite from the day he is brought before the authority.