Is it obligatory for the heirs of the deceased, who did not pay the compensatory blood (dam) for overshooting the Miqat, to offer the fidyah from his estate, or to fast ten days on his behalf and divide them among themselves if there is no estate?

If someone dies having incurred a blood sacrifice (dam) for neglecting an obligation in Hajj or Umrah (definition), this blood sacrifice is to be taken from the principal of their estate before its division, as it is a financial right. If the deceased has no estate, it is recommended for their guardian (wali) to fast on their behalf for ten days, based on the hadith (definition): "Whoever dies owing fasts, their guardian should fast on their behalf." It is permissible for the guardians to share the fasting among themselves.