(R. Yudan): This is if he mentioned (forbade it through) Shevu'ah, and afterwards mentioned Neder, but if he mentioned Neder, and afterwards mentioned Shevu'ah, he is exempt for the Shevu'ah, for Nedarim take effect on Isurim, but Shevu'os do not take effect on Isurim.

R. Yosi expounds "Le'esor Isar" - [whether he said] 'it is Alai Isar' or 'it is Alav Isar' (he forbade like a Neder to himself or to another), it is forbidden. 'Shevu'ah it is Alai', he is forbidden. 'It is Alav through a Shevu'ah', he is forbidden;

(R. Yudan): [When he forbids another,] in Nedarim it is forbidden, and in Shevu'os he is permitted. [Whether he said] 'it is Alai Isar' or 'it is Alav Isar', it is forbidden. 'Shevu'ah it is Alai', he is forbidden. 'It is Alav through a Shevu'ah', he is permitted. (We explained this like OHR SOMAYACH, Hilchos Shevu'os 5:4.)