(Mishnah - R. Meir): If one said 'I trust my father (to be a witness in our case, or to judge it, and I will accept the verdict), or I trust your father, or I trust three cattle shepherds [to judge it]', he can retract [even after the final verdict];

Chachamim say, he cannot retract [after the final verdict].

R. Meir says, if one was obligated to swear to his opponent (Reuven), and Reuven said 'you may swear to me by the life of your head', Reuven can retract (and demand a proper oath with Hash-m's name);

Chachamim say, he cannot retract.

(Gemara): If one said 'I trust your father', if he accepted in front of [at most] two, [all agree that] he can retract. If it was in front of three, [Chachamim say that] he cannot retract;

(Shmuel): This is when he did not take from this one and give to this one (i.e. before the final verdict), but if he took from this one and give to this one, he cannot retract.

(R. Yochanan and Reish Lakish): Even if he took from this one and give to this one, he can retract.

[If he said to swear by] a garment or cloak that he is holding' and he accepted, he can retract. (Pnei Moshe - the Tosefta says so according to Chachamim, but R. Meir disagrees.)

(R. Chiya bar Ba): [They argue in a case] when he [the claimant] said to him 'if your father will tell me [that you are exempt], I have no claim against you', but if [the defendant] said 'your father will say [what I owe to you]' this is a pretext. He wants [his opponent] to admit. (He did not resolve to pay like his father will say.)

(R. Yosi ben Chaninah): Even if he said 'your father will say, and I accept on myself' [he is obligated, for also in the former case] we do not find testimony of a relative (and he cannot retract).