Sahih Bukhari Volume 005, Book 059, Hadith Number 421.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 59. Military Expeditions Led by the Prophet (PBUH) (Al-Maghaazi)
Narrated By Anas bin MalikÂ : The Prophet invoked evil upon those (people) who killed his companions at Bir Mauna for 30 days (in the morning prayer). He invoked evil upon (tribes of) Ril, Lihyan and Usaiya who disobeyed Allah and His Apostle. Allah revealed a Quranic Verse to His Prophet regarding those who had been killed, i.e. the Muslims killed at Bir Ma'una, and we recited the Verse till later it was cancelled. (The Verse was:) 'Inform our people that we have met our Lord, and He is pleased with us, and we are pleased with Him."