The Jataka, Vol. IV, tr. by W.H.D. Rouse, [1901], at sacred-texts.com
The Problem of Meṇḍaka will be given under the Ummagga Birth 2.
115:1 No. 535, vol. v, p. 382 (Pali).
115:2 No. 546, vol. vi, p. 329 (Pali).