Hadith 450
Narrated 'Ubaidullah Al-Khaulani: I heard `Uthman bin `Affan saying, when people argued too much about his intention to reconstruct the mosque of Allah's Apostle, "You have talked too much. I heard the Prophet saying, 'Whoever built a mosque, (Bukair thought that `Asim, another sub-narrator, added, "Intending Allah's Pleasure"), Allah would build for him a similar place in Paradise.' "