The grandmother taking the newborn and neglecting it until its death

Q: A woman got married, gave birth to a child, and his grandmother placed him in one corner of the house. She left the baby in a secure place without covering his head or taking any necessary action, though she was uneasy about this bad location. After three or four hours, she found the baby dead. What is incumbent upon the grandmother regarding the baby, knowing that she was not aware that this was bad, and she is not in good health due to asthma, and she is around seventy years old. This incident took place twenty years ago. Allah's Peace be upon our master, Muhammad, his family and Companions. As-salamu `alaykum warahmatullah wabarakatuh (May Allah's Peace, Mercy, and Blessings be upon you!)

A: Diyah (blood money) and expiation are obligatory for the grandmother, and she must repent to Allah (Glorified and Exalted be He), because she left the baby in a place and neglected him, which lead to his death. May Allah grant us success. May peace and blessings be upon our Prophet, his family, and Companions.