The line comes from The Lord of the Rings: The Fellowship of the Ring from 2001, spoken by Gandalf the Grey to Frodo in the Shire. In the original English it begins 'A wizard is never late,' and the Spanish version 'Un mago jamás llega tarde' became the form shared on Spanish-speaking soundboards and chats. It spread as a reusable excuse for lateness, quoted in memes, edits and group messages whenever someone arrives after everyone else but wants to frame it as intentional and perfectly timed.