《明史·列传·卷一百九十二》
宣德二年二月又命侯显赏赐各番国，侯显历经乌斯藏、必力工瓦、灵藏、思达藏等国而还。
宣德二年二月复使显赐诸番，遍历乌斯藏、必力工瓦、灵藏、思达藏诸国而还。
In February of the second year of the Xuande era, the emperor ordered Hou Xian to bestow rewards on various foreign countries. Hou Xian visited countries such as Tibet, Nepal, Lingcang, and Sitat.