‏النكاح : Hadeeth No:3268 Abu Huraira (Allaah be pleased with him) reported Allaah's Messenger (may peace upon him) having said this: One should not combine a woman and her father's sister, nor a woman and her mother's sister in marriage....

‏الصلاة : Hadeeth No:917 Qaz'a reported: I came to Abu Sa'id al-Khudri and he was surrounded by people. When the people departed from him I said: I am not going to ask you what these people have been asking you. I want to ask you about the prayer of the Messenger of Allaah (sallAllaahu alayhi wa sallam). He (Abu Sa'id) said...