Mukhtasar Bukhari

Narrated from Sayyiduna Uthman bin Affan (may Allah be pleased with him) that when people were talking about him, at the time when he (Uthman) built the mosque of the Messenger of Allah (peace and blessings of Allah be upon him), he said: "You have said much (about me), although I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: 'Whoever builds a mosque, seeking the pleasure of Allah, Allah will build for him a house in Paradise like it.'"