Supplication said by one fasting when presented with food and does not break his fast

إِذَا دُعِيَ أَحَدَكُمْ فَلْيُجِبْ، فَإِنْ كَانَ صَائِماً فَلْيَصِلَ وَإِنْ كَانَ مُفْطِراً فَلْيَطْعَمْ. وَمَعَنَى فَليَصِلَ أَي فَلْيَدَعَ.

‘If you are not invited (to a meal) then answer. If you happen to be fasting, then supplicate (for those present) and if you are not fasting, then eat.’