Who are the two flowers of Paradise?

This question is not without ambiguity, and perhaps the questioner is referring to the noble Hadith: "Indeed, Al-Hasan and Al-Husayn are my two fragrant basil plants (rayhanatai) from this world." And rayhan is a child who is smelled and with whom one finds rest. It has been said that they were named so because the scent of Paradise emanates from them.