It is compulsory to place all the wealth of the deceased for legal inheritance, and that wealth includes money left in the bank or kept in any other place. It isn’t permissible for any of the heirs to seize anything without permission of the other heirs with evidence that he is in need of the money.
The inheritance should be shared after checking with the people of knowledge and specialists in the matter of inheritance. This is to ensure that the inheritance is shared correctly according to the Islamic law.
And it shouldn’t miss our attention that the money present in Interest based banks is considered unlawful. If the money is present in an interest based bank then the heirs should try their best to move the money to an Islamic bank and repent to Allah SWA to purify themselves from the sin.