What is the ruling on insuring furniture and cars?

The questioner : The questioner says: Shaykh, relatives or neighbors ask her to buy their necessities. For example, she goes to the market. Does she sin if she takes the extra amount?

The Shaykh : Yes, if a person is entrusted with buying a need from the market, and he is given one hundred riyals, then he buys it for eighty, he must return the twenty. So it is obligatory for this woman, who is given money to buy necessities from the market, to return the remainder to the people.

The questioner : Sometimes the questioner says: Honorable Shaykh, they did not give her money; rather, for example, she pays from her own money.

The Shaykh : Yes, it is not permissible for anyone to take more than what she gave.

The questioner : Okay, okay, does she not take anything for these expenses, Shaykh, like the car and others?

The Shaykh : If she wishes to take something, she says to them, for example, "I will buy it for you, but I will charge you for my expenses and the car expenses, the cost of gasoline," or she says, for example, "I will add to your cost, for example, ten percent, five percent." It is not permissible for her to take without their knowledge.

The questioner : Good, good.