Dua when forgetting to say Bismillah before eating
بِسْمِ اللهِ أَوَّلَهُ وَآخِرَه
بِسْمِ اللهِ أَوَّلَهُ وَآخِرَه
Bismil-lahi awwalahu wa-akhirah
Translation
In the name of Allah, at its beginning and at its end.
When to recite
Recited when one forgets to say Bismillah at the start of eating and remembers during the meal.
Source / Reference
Abu Dawud 3/347, At-Tirmithi 4/288