Note 429 — Chapter XXVIII · DEATH OF OMAR. A.H. XXIII. A.D. 644.
Reading edition
Bilâl used to say that the only way to soothe Omar, when in a rage, was to recite in his hearing passages from the Corân, which invariably assuaged his wrath. This may, perhaps, have reference to the period of his conversion, when having struck his sister, and made blood to flow, he was moved to repentance by the reading of a Sura. (See Life of Mahomet, p. 96.)