續一切經音義 9.56

9.56

踰繕那（舊云由延或曰由旬亦云踰闍那梵語聲轉也此無正翻或云十六里或云四十里即自古聖王軍行一日程也）。

踰繕那 (Formerly rendered as 由延, or as 由旬, or as 踰闍那, which are phonetic shifts in Sanskrit. There is no single direct translation here: some say sixteen li, some say forty li; that is, the distance of a single day's march for the army of an ancient sage king).