Al-Kāfi #1677“Abu ‘Abd Allah (a.s.), has said, ‘If one marries a woman during her waiting period and goes to bed with her, she becomes unlawful for him...
Man Lā Yaḥḍuruh al-Faqīh #1348I asked Abu Abdullah (as) about a woman whose husband has passed away: "Can she perform Hajj during her waiting period ('iddah)?"
Imam (as)...