《水经注·卷二》
以上这些塔就是所谓四大塔。妾法显传》说：弗楼沙国有一只佛钵。月氏王调动大军来攻打这个国家，想把佛钵放在象背上带走，可是大象却走不动。他又造了一辆四轮车来装载佛钵，用八头大象合力拉车，还是拉不动。
《法显传》曰：国有佛钵，月氏王大兴兵众，来伐此国，欲持钵去，置钵象上，象不能进；更作四轮车载钵，八象共牵，复不进。
The abovementioned towers are the so-called Four Great Towers. Monk Faxian's biography says: There was a Buddha bowl in the country of Purushapura. The king of Kushan mobilized a massive army to attack this country, intending to place the Buddha bowl on the back of an elephant and take it away, but the elephant could not move. He also built a four-wheeled cart to carry the Buddha bowl, and eight elephants worked together to pull the cart, but they still could not pull it.