Fayruz al-Daylami is a person from a long time ago in history. He lived in what is now known as Iraq, which is a country on the other side of the world. Fayruz al-Daylami was very important because he was a musician and writer.
Have you ever listened to music or played an instrument? Well, Fayruz al-Daylami did something like that, except he used very old instruments and sang songs in a different language called Arabic. People really liked his music, just like how you might enjoy listening to your favorite song.
Fayruz al-Daylami was also a writer. He wrote stories and poems that people read to learn about their history and culture. It's like when you read a book about a princess or a firefighter, except these stories were written a very long time ago in a different language.
In summary, Fayruz al-Daylami was a person from Iraq who was very good at making music and writing stories. People long ago enjoyed his music and reading his stories to learn about their culture and history.