(82) باب كِتَابِ النَّبِيِّ صلى الله عليه وسلم إِلَى كِسْرَى وَقَيْصَرَ
Narrated Ibn `Abbas:
Allah's Messenger (ﷺ) sent a letter to Khosrau with `Abdullah bin Hudhafa As-Sahmi and told him to hand it over to the governor of Al-Bahrain. The governor of Al-Bahrain handed it over to Khosrau, and when he read the latter, he tore it into pieces. (The sub-narrator added, "I think that Ibn Al-Musaiyab said, 'Allah 's Apostle invoked (Allah) to tear them all totally Khosrau and his companions) into pieces.
Reference: Sahih al-Bukhari 4424
In-book reference: Book 64, Hadith 446
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 59, Hadith 708