Musannaf Ibn Abi Shaybah

Ibrahim says that after a year has passed, the woman will be given the choice: if she wishes, she may keep the marriage, and if she wishes, she may end it.

Hazrat Shurayh narrates that Hazrat Umar, may Allah be pleased with him, wrote a letter to me stating that an impotent man should be given a respite of one year; if he becomes capable of intercourse, then fine, otherwise give the woman the choice—if she wishes, she may maintain the marriage, and if she wishes, she may end it.