Is it permissible to purchase gold with a certified check that cannot be cashed immediately due to the unavailability of liquidity in banks, and can only be disbursed when liquidity becomes available?

It is not permissible to buy gold with a certified check that has no transferable balance, because it is considered a post-dated check and does not fulfill the Sharia requirement of immediate possession (taqabud). The check considered valid for constructive possession (qabd hukmi) is one that meets the conditions and has a transferable balance, in accordance with the resolution of the Islamic Fiqh Academy.