Sahih Bukhari Volume 005, Book 057, Hadith Number 029.

Narated By Abu Huraira : While we were with Allah's Apostle he said, "While I was sleeping, I saw myself in Paradise, and suddenly I saw a woman performing ablution beside a palace. I asked, 'For whom is this palace?' They replied, 'It is for 'Umar.' Then I remembered 'Umar's Ghira (self-respect) and went away quickly." Umar wept and Said, O Allah's Apostle! How dare I think of my ghira (self-respect) being offended by you?