ileyhil masir ne demek?

I've found two possible interpretations for "ileyhil masir", but I'm not certain which one you're referring to.

1. If you intended to ask about "İleyhil Masir", it is the name of a Turkish TV series that aired in 2016. The show is a drama centered around the life of a man named Halil, who loses his memory after a car accident and embarks on a journey to discover his true identity.

2. If you meant "ilyehil masir", it does not have a specific meaning or reference. It seems to be a combination of Turkish and Arabic words, but it doesn't form a coherent phrase or expression.

Please clarify your question so I can provide a more accurate response.