How do we distinguish between a trick and speaking in ambiguous terms?

The questioner:
Yes. The question is: When is speech considered a trick, and when is it considered speaking in ambiguous terms? And how do we distinguish between a trick in speech and speaking in ambiguous terms?

The Shaykh:
It means that if it is for a legitimate reason, he says to someone, "I saw so-and-so today, and I am worried about him." He says, "I saw so-and-so, and I am worried about him." The other person replies, "I did not see him," meaning he did not see him in that specific place, or in his house, or in his home, meaning he is worried about him. This is to protect the feeling. As for tricks intended to consume what is unlawful or to drop a right, that is a trick.
He interprets the situation to take one hundred riyals from him by robbery or theft, then he swears an oath, saying to the judge, "I did not take anything from him," interpreting what he took from him today or yesterday. This interpretation is of no use.