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Narrated Anas bin Malik:For thirty days Allah's Apostle invoked Allah to curse those who had killed the companions of Bir-Mauna; he invoked evil upon the tribes of Ral, Dhakwan, and Usaiya who disobeyed Allah and His Apostle. There was reveled about those who were killed at Bir-Mauna a Qur'anic Verse we used to recite, but it was cancelled later on. The Verse was:"Inform our people that we have met our Lord. He is pleased with us and He has made us pleased."