‏البيوع : Hadeeth No:3908 Ibn Abu Najih has narrated a hadith like this with the same chain of transmitters, but he has not mentioned:" for a definite period"....

‏الذكر والدعاء والتوبة والاستغفار‏ : Hadeeth No:6569 Abdullah b. Mas'ud reported that when it was evening Allaah's Messenger (sallAllaahu alayhi wa sallam) used to supplicate:" We entered upon evening and the whole Kingdom of Allaah also entered upon evening and praise is due to Allaah. there is none worthy of worship (in truth) but Allaah, the One Wh...