Volume 9, Book 91, Number 369:
Narrated ‘Abdullah bin ‘Abbas:
Allah’s Apostle sent a letter to Khosrau and told his messenger to give it first to the ruler of
Bahrain, and tell him to deliver it to Khosrau. When Khosrau had read it, he tore it into pieces. (Az-
Zuhri said: I think Ibn Al-Musaiyab said, “Allah’s Apostle invoked Allah to tear them (Khosrau and
his followers) into pieces.”