What is the fate of the Prophet's (peace be upon him) children?

If the questioner is referring to the Prophet's parents, the answer to that question has already been provided. However, if they are referring to his children who died before reaching puberty (Al-Qasim, Abdullah, and Ibrahim), then all children are in Paradise, whether they died before or after the Prophetic mission. This is based on the Prophet's (peace and blessings be upon him) saying: "As for the two children around him, they are every child who dies upon the فطرة (natural disposition)," and this includes the children of polytheists.