A man offered a mobile phone for sale for 600 riyals, but I suspected it was stolen, so I apologized and said: I have only 200 with me, and he sold it to me!!

Question:
He says: Honorable Shaykh, may Allah grant you success. The questioner says: We were in one of the streets and we met a young man with a mobile phone that he had offered for sale. So we asked him: How much? He said: Six hundred riyals. And so that we would not buy it from him, we said: We have only two hundred riyals with us. He agreed to this price. And we had a strong suspicion that it was stolen. And when he agreed to this small amount, we were embarrassed to back out, so we took it from him. Is this permissible for us?

Answer:
No, go back to him and take your money. This is doubtful; it is suspected to be stolen, and he has no ownership of it. How does he give up six hundred for two hundred? This is a strong accusation.