The fourth question of Fatwa no.
10825
Q 4: If my brother is dishonest in his dealings with me, will it be permissible for me to abandon him?
A:
You should advise him regarding the obligation of
observing Amanah (honesty, trust, and obedience) and the prohibition of dishonesty. If he accepts your advice, praise be to Allah; otherwise, you should stay away from dealing with him.
May Allah grant us success! May peace and blessings be upon our Prophet Muhammad, his family and Companions!
Permanent Committee for Scholarly Research and Ifta'