The ruling on selling cars and phone cards on installment

The questioner:
This questioner says: I sell cars, phone cards called Suwa, and household appliances on installment. People buy from me on credit and on deferred payment. I have two questions. The first question is: What is the ruling on trading in such matters? The second question is: Sometimes, when some relatives or close associates come to me, I tell the appliance companies: If they want to sell the item after they buy it from me, sell it to them at such-and-such a price so that they do not lose money or sell it for less. What is the ruling? May Allah reward you.

The Shaykh:
Repeat the question, may Allah keep you well.

The questioner:
This man says: I sell cars, phone cards called Suwa, and household appliances on installment. And if a person buys from me, he means to ask: What is the ruling on this form of sale? That is his first question.

The Shaykh:
If you take possession of these items, it is permissible for you to sell them. But before you take possession of them, you do not sell them until you take possession of them. The Prophet (peace and blessings be upon him) said to Hakim ibn Hizam (may Allah be pleased with him), when he said: “O Messenger of Allah, a man comes to me asking me to sell him something, but I do not have it, so I go and buy it from the market.” The Prophet (peace and blessings be upon him) said: and he must possess it, and it must be known by sight or by description. Yes.