What is the ruling on dealing with a partner who has betrayed trust in business, and what are the consequences of that?

The partner's hand is a hand of trust over the company's funds, so he is not liable except in cases of transgression or negligence. His word is to be accepted under oath regarding the amount of profit and loss, and the funds that have gone and those that remain. It is not permissible to accuse a partner of manipulation except with definitive proof, such as confession, witnesses, or documentary evidence. If betrayal is proven, it is permissible to take back the right without increase. However, if betrayal is not proven, then you are only entitled to what he informs you of, and he must take an oath.