إِنِّي صَائِمٌ، إِنِّي صَائِمٌ

Innee saa'imun, 'innee saa'imun

I am fasting. I am fasting. Narrated Abu Huraira (RA): The Messenger of Allah (ﷺ) said: Fasting is a shield; So if any one of you observes fasting, let him not commit adultery or foolishness; If someone fights him or insults him, let him say - (The dua is mentioned above)

Reference: Bukhari: 1894