Daci'ensi 大慈恩寺 was a monastery in Chang'an (modern Xi'an) that served as a major center of study during the Sui and Tang dynasties. It was founded in 589 as Wulousi 無漏寺 and rebuilt in 648 by the future emperor Gaozong 高宗. It was the base for the translation bureau established by Xuanzang 玄奘, who in 652 built a five-story pagoda to house the Sanskrit manuscripts and images he had brought from India, which is still extant.