Heirs settling the debts of the deceased
Q: If a father passed away leaving debts behind (even though in his life he might have been a bit lax in trying to sort out things quickly), is it waajib on the heirs to settle the debts? Or will it be regarded as Ihsaan if they sort it out?
Lastly, if the heirs do not have the ability to sort out things then what should be done?