Narrated Jabir:
The Prophet (peace be upon him) said, "I entered Paradise and saw a palace and asked whose palace is this? They (the Angels) said, "This palace belongs to 'Umar bin Al-Khattab.' I intended to enter it, and nothing stopped me except my knowledge about your sense of Ghira (self-respect (O 'Umar)." 'Umar said, "O Allah's Messenger (peace be upon him)! Let my father and mother be sacrificed for you! O Allah's Prophet (peace be upon him)! How dare I think of my Ghira (self-respect) being offended by you?"
(Sahih al-Bukhari, Vol. 1, Book 67, Hadith 159)