The Vavibrar is a source from which there is quoted commentary regarding Urithiru.
|| "Though many wished Urithiru to be built in Alethela, it was obvious that it could not be. And so it was that we asked for it to be placed westward, in the place nearest to Honor.
–Jasnah's note: Perhaps the oldest surviving original source mentioning the city, requoted in The Vavibrar, line 1804. What I wouldn't give for a way to translate the Dawnchant.
Complete:This page has sparse information from the books. However, it does contain everything we have on the subject at this time.