An oath is never administered because of claims issued by deaf-mutes, mentally or emotionally incapable individuals and minors. In the latter instance, this principle applies regardless of whether the minor's claim involves his own issues or those of his father. For admitting a portion of a claim owed to a minor is like returning a lost article. '
Similarly, if the defendant denied the entire debt, and one witness came and testified on behalf of the minor, the defendant is not required to take an oath. For it is as though there were one witness, but no plaintiff, because a claim lodge by a minor is not a substantial claim.
Thus, if a minor said to an adult: "You owe me..." or "You owe my father a maneh," and the defendant said: "I owe you only 50," or "I do not owe you anything" and there was one witness who corroborates the minor's claim, the defendant is not liable to take a Scriptural oath.
If, however, a person acted as a watchman for a minor and claimed that the entrusted article was lost, he is required to take the oath required of a watchman. The rationale is that this oath is not taken because of a claim.
Similarly, if a person admitted that he was a partner or a sharecropper of a minor, the court should appoint a guardian for the minor, and the partner or the like should take an oath despite the fact that there is only an indefinite claim against him.