‏الحيض : Hadeeth No:724 'A'isha said: The Prophet of Allaah (sallAllaahu alayhi wa sallam) used to remember Allaah at all moments....

‏الجهاد والسير‏ : Hadeeth No:4391 This hadith has been narrated on the authority of Bara' with another chain of transmitters, but this hadith is short as compared with other ahadith which are more detailed....