a. This sale is a from of
Salam sale (sale with advance payment). There is no harm in it, if the description of the car is known and the time is specified beforehand, according to the generality of the Statement of Allah (Glorified and Exalted be He):
O you who believe! When you contract a debt for a fixed period, write it down.
The Prophet (peace be upon him) also stated:
"Whoever pays in advance the price of a thing to be delivered later should pay it for a specified measure at specified weight for a specified period."
The mention of measure and weight in the Hadith is for exemplification and not for specification. B. If the person purchases a car and owns it legally, it is permissible to sell it on credit for a specified time or by installment purchase with specified times. There is no harm in this, Allah Willing. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.