Sharia Law with no Will

I act for the estate of a UAE-domiciled gentleman who died in 2023. I have a copy of the UAE certificate of heirship (there was no Will) which shows the ‘Executor’ and the division of assets by percentage.

There are 2 UK assets - a bank account and a property. Am I right in my understanding that the UK authorities will accept the law of domicile for the bank account but we will have to follow the UK intestacy rules for the property (held as tenants in common with 3 sons) as there was no Will (uk or otherwise)? In order to follow the Sharia division for the flat we will have to ask the Beneficiaries to enter into a Deed of Variation?

Any advice much appreciated