Abd ar-Rahman b. Abu Nu`m told that he heard `Abdallah b. `Umar say when a man asked him about [a pilgrim] wearing the ihram (Shu'ba remarking that he thought it concerned killing flies), "The people of al-`Iraq ask me about flies when they have killed the son of God's messenger's daughter, two people of whom God's messenger has said they[1] are his offspring[2] in the world! " Meaning al-Hasan and al-Husain. The word is raihan, used in the dual. One of the meanings of the word is a bounty or blessing from God. It is usually explained in connection with this tradition as meaning descendants. Bukhari transmitted it.