This is a popular song made famous by the Lebanese singer Fairouz and composed by Sayyid Darwish.
Here is a recording of Fairouz singing it, and here is an instrumental rendition in the album by one of the “Rahbani brothers,” Ziad Rahbani; the album is “Bil Afrah”. Note that the entire album is online, and this link points to the particular track; feel free to listen to the whole thing!
Here are the scores for the Bil Afrah version, for treble and alto clefs.
