The Aayah on which the blood of `Uthmaan ibn `Affaan’s رضي الله عنه fell when he was murdered:

بـسـم الله والحـمـد لله والـصلاة والـسـلام عــلى رسـول الله، وبـعـد

{فَسَيَكْفِيكَهُمُ اللَّـهُ ۚ وَهُوَ السَّمِيعُ الْعَلِيمُ}

{So Allaah will suffice for you against them; and He is the All-Hearer, the All-Knower} [Surah al-Baqarah (2): 137]

Ibn Abu Haatim رحمه الله mentioned in his Tafseer on the authority of Ziyaad bin Yunus that Naafi` bin Abu Nu`aim informed him: “One of the Khaleefah had send me with the Mus-haf (the Qur’aan) of `Uthmaan ibn `Affaan رضي الله عنه for taking care of it.” Ziyaad said: “I said to him: The people say that his Mus-haf was in his room when he was killed and that the blood fell on the aayah {So Allaah will suffice for you against them; and He is the All-Hearer, the All-Knower}.” Naafi` said: “I have seen the blood on this aayah with my own eyes.”

[It is said that this Mus-haf is in Turkey, and Allaah knows best]