بسم الله الرحمن الرحيم الحمد لله وحده و الصلاة و السلام على من لا نبي بعده و على آله و أصحابه أجمعين
No. of surahs (chapters) in the Mushaf (personal Qur’an copy) of Ubayy bin Ka’b –may Allah be pleased with him, is one of the top ten arguments of orientalists and Christians against the Muslim assertions on fool proof preservation of the Qur’anic text.
It is said that Ubayy’s mushaf had two “additional surahs” and the polemicists make use of such statements arguing against the unanimity of the earliest Muslims on the Qur’an’s content.