The ruling on the 'Aqiqah for a deceased person

The fourth and final question in the letter from our brother Abbas states: A child of mine passed away about fifteen years ago, and at that time he was four months old. Do I deserve to perform the 'Aqiqah for him, or should I offer a sacrifice for him? Please advise us, may Allah reward you.
Answer: The Sunnah is to slaughter two sheep for him if he was a boy; you slaughter two sheep for him. This is the best option. It is a Sunnah, not obligatory, but it is a Sunnah. If it is easy for you to do so, it is better for you. The Prophet (peace and blessings be upon him) said: and he ordered that two sheep be slaughtered for a boy and one sheep for a girl. This is the Sunnah. If you are able, the best for you—my brother—is to perform the 'Aqiqah for this child of yours with two sheep, and distribute their meat among your brothers from the neighbors, relatives, and the poor. Or you can cook them—cook their meat—and invite to the meal whomever you wish from your brothers, loved ones, and the poor. All of this is good, all of it is fine, and praise be to Allah. Yes.