‏الطلاق : Hadeeth No:3549 'A'isha (Allaah be pleased with her) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: It is not permissible for a woman believing in Allaah and the Hereafter to observe mourning on the dead for more than three (days), except in case of her husband....

‏الجنة وصفة نعيمها وأهلها‏ : Hadeeth No:6817 This hadith has been narrated on the authority of Sa'id with the same chain of transmitters but with a slight variation of wording....