It is reported from ‘Ata bin Abi Rubah radiAllaahu anhu that Sayyidina ‘Uthman bin ‘Affan radiAllaahu anhu led the people in prayer. Then he stood behind the Maqam e Ibrahim. He recited the whole Book of Allah in one rak’ah. This wa a rak’ah of Witr. It says in Muhammad bin Sirin’s report that Hazrat ‘Uthman used to pray throughout the night and finish the whole Quran in one rak’ah.
I get overwhelmed just thinking of finishing one juz of the Qur’an in a day…let alone the whole Blessed Book in a single night. May Allah help us achieve a small fraction of what the ashaab kareem radiAllaahu anhum did, ameen.