Q: A man took a partner in buying a car. They sold it with a deferred price to a third party.
One of the two buyers guaranteed the money for his partner. The purchaser and the scribe did not know about their partnership. Later, the two buyers annexed the deed of their partnership to the sale contract.
The purchaser knew it is not permissible to do this, because it is not permissible to act as a partner and a guarantor of the same contract. Is this sale valid or not? May Allah have mercy on you.
A:
If the matter is as presented in the question, there is no harm in this sale. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.