釋氏稽古略 2.203

2.203

The Empress Dowager Hu of the Wei, in the bingshen year, the first year of the Xiping reign era, dispatched Song Yun along with the monk Huisheng to the Western Regions to search for scriptures that had not yet arrived. Traveling four thousand li west from Luoyang, they reached the Chi Ridge and only then exited the borders of Wei. Traveling west again for two full years, they reached the country of Gandhara and returned, obtaining one hundred and seventy Buddhist scriptures. In the second month of this year, they arrived back in Luoyang. In total, the Wei state had four hundred and fifteen Buddhist scriptures, comprising one thousand nine hundred and nineteen fascicles (the Treatise on Buddhism and Daoism in the Book of Wei, together with the scripture catalogues).