大唐西域記 3.51

3.51

從此西南，踰山涉險，行七百餘里，至半笯（奴故反）嗟國（北印度境）。

From this going south-west, and crossing some mountains and traversing many precipices, going 700 li or so, we come to the country Pun-nu-tso (Punach).