The Jataka, Volume I: Book I.--Ekanipāta: No. 101. Parosata-Jātaka
The Jataka, Volume I, tr. by Robert Chalmers, [1895]
[411] This story is in all respects analogous to the Parosahassa-Jātaka (No. 99), with the sole difference that 'think hard' is read here.