‏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"....

‏الفتن وأشراط الساعة‏ : Hadeeth No:6899 Ahnaf b. Qais reported on the authority of Abu Bakra that Allaah's Messenger (sallAllaahu alayhi wa sallam) said: When two Muslims confront each other with their swords, both the slayer and the slain are doomed to Hell-Fire....