حَيٌّ لَا يَمُوتُ، قَيُّومٌ لَا يَنَامُ.
He is Living and does not die; He is the Sustainer who upholds the order of existence, and He does not sleep.
Ḥayy is accompanied by lā yamūt: no death ever overtakes Allah’s life.
Qayyūm is accompanied by lā yanām: sleep is also negated of the One who sustains all things.