«اللَّهُمَّ إِلَّا أَنْ تَقِدَ نَارُ الْجُوعِ وَتَحُولَ دُونَ الْهُجُوعِ»
Unless the fire of hunger blazes up and keeps one from sleeping.
Taqida means to kindle or blaze; al-jūʿ is hunger; taḥūla dūna means to stand in the way; and al-hujūʿ is sleep.
The exception matters. He distinguishes genuine hunger from an unnecessarily elaborate meal. The language of “hunger’s fire” turns an ordinary practical distinction into vivid imagery.