本生故事，講大臣先那迦借吞劍藝人之表演，教導國王摩陀婆「守住輕率的承諾」遠比吞劍更難，藉此治癒國王因將王后借予青年一週、王后竟隨之私奔而生的憂思。

A birth story of a counsellor who used the display of a sword-swallower to teach a king that keeping a rash promise is harder than swallowing a sword, curing the king’s grief over a queen who had run off with a young man given to her for a week.