קוּבְיוֹסְטֵיסָא, Y. Ned. V, end, 39ᵇ [read:] א"ל וכן בר נש עביד אמר ליה בק׳ (v. Asheri to Gitt. 35ᵇ) he said to him (who had vowed that he would make no profits), does a man do that? Said he to him, (I vowed to make no profits) as a gambler (Asheri l. c. quotes קוּבְיוֹסְטָא).