Do we consider not admitting our mother to a private hospital since the beginning of her illness a sin requiring expiation? And can her request to be transferred to a private hospital be considered a will? Is it permissible to deduct the exorbitant costs of her treatment from her estate to reimburse those who paid, knowing that the costs are close to three-quarters of the estate after settling debts and executing the oral will? Or is what was paid by her children and their father a religious duty that cannot be reclaimed?

You bear no sin for not admitting your mother to a private hospital at the beginning of her illness. The general rule is that she bears the expenses of the private hospital since she was the one who requested it. Whoever paid any of these expenses without the intention of recovering the cost from the mother is not entitled to claim it back. As for whoever paid with the intention of recovering the cost, they are entitled to claim what they paid from the mother's estate after taking an oath. This is considered among the debts that are to be disbursed from the estate before the will and its division.