Ибн аль-Асир
The date and the circumstances of Raymond's release are uncertain. According to William of Tyre, Raymond was set free after spending eight solar years in captivity; however, Ibn Jubayr said that Raymond had been imprisoned for twelve lunar years. Ali ibn al-Athir incorrectly recorded that Raymond was released after Nur ad-Din died on 15 May 1174, but Raymond had witnessed a royal charter in Jerusalem on 18 April of that year. Lewis writes that Raymond was released because of developing conflict between Nur ad-Din and his ambitious commander, Saladin, who was Egypt's actual ruler (). The ailing Nur ad-Din (or his advisors) most probably regarded the crusader states as a buffer between his Syrian realm and Saladin's Egypt.