Sahih al-Bukhari 3609

It is related from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "The Fina; Hour will not come until two parties fight whose claims are the same." It is related from Abu Hurayra that the Prophet, may Allah bless him and grant him peace, said, "The Final Hour will not come until two parties fight and there will be great slaughter between them, while their claims are the same. The Final Hour will not come until the lying Dajjals appear, about thirty of them, all of whom claim to the Messenger of Allah."