Wait, it's possible the phrase is already broken into words: tnzyl brnamj alnfs alzkyt llandrwyd t=ش, n=م, z=ء, y=غ, l=ل → "شمءغل" — not common. Maybe "تنزيل" if t=ت? But t=ش in this map. Could be wrong mapping — let's check: Some people use different mapping (like t = ت) in informal ‘Arabizi’. Let's try the more common one:
So tnzyl = ش م ء غ ل = "شمع غل" not making sense. Could be "تنزيل" if t=ت and n=ن — but that would be English 't'='ت' only if keyboard is set differently (like Mac's 't'=ت, but that's not standard). Let's try a different assumption: Maybe they just typed Arabic word in English letters ignoring exact mapping.
On Arabic keyboard, the letter that appears when you press an English key: