Who is Hanuman's son?

I'm curious to know, who exactly is Hanuman's son? Could you please elaborate on this point? In the realm of mythology and folklore, Hanuman is often depicted as a devoted and powerful ally to Lord Rama. But I'm not familiar with any mention of a son in his storied life. Is there a lesser-known tale or tradition that speaks of Hanuman's offspring? I'd be intrigued to learn more about this aspect of his legend, if it exists.