Of the kings to whom the Noble Prophet (S) had sent letters inviting them to Islam, one was Khusrow Parvez, the emperor of Iran. The letter was sent to him through ‘Abdullah Ibn Hadhakah. On receiving the letter, Khusrow ordered it to be translated. When it was translated, he noticed that the Noble Prophet (S) had written his own name before the emperor’s and this proved too hard for him to digest. He tore the letter in fury, totally ignored ‘Abdullah and refrained from responding to the letter.
When the Noble Prophet (S) was informed of this act, he prayed: “O’ Lord! You too tear apart his kingdom.”
Khusrow wrote to Badhan, the king of Yemen: “It has reached my ears that a person has claimed Prophethood in Hijaz. Arrange to send two brave and courageous persons to him so that they may bring him to me as a captive.”
Badhan sent two persons, Babwaih and Kharkh’Asrah to Hijaz and they presented Badhan’s letter to the Noble Prophet (S).
He said to them: “You may rest now for I shall hand over my reply to you tomorrow.”
The next morning when they arrived before him, the Noble Prophet (S) told them: “Inform Badhan that last night (10th of Jumada al-Ula, year 7 ah), when seven hours of the night had passed, my Lord killed Khusrow Parvez at the hands of his son Sheerwaih, and shortly we shall prevail over his empire. If you accept Islam, you can continue to rule over your region.” ( Dastan-ha Wa Pand-ha, Volume 2, Page 126; Rauďatul Safa )