A comprehensive doa for barakah is: 'Allahumma barik lana fima razaqtana wa qina 'adhaban-nar' — O Allah, bless us in what You have provided for us and protect us from the punishment of the Fire. Barakah means divine increase and goodness placed by Allah in something.
اللَّهُمَّ بَارِكْ لَنَا فِيمَا رَزَقْتَنَا وَقِنَا عَذَابَ النَّارِ
Allahumma barik lana fima razaqtana wa qina 'adhaban-nar.
Meaning: O Allah, bless us in what You have provided for us and protect us from the punishment of the Fire.
Source: Sunan al-Tirmidhi #3455Barakah is a uniquely Islamic concept — it means that Allah places divine increase, goodness, and blessing in something beyond its apparent measure. A small amount with barakah outweighs abundance without it. Nabi (shallallahu alaihi wa sallam) frequently asked for barakah in food, time, and provisions. Without barakah, even great wealth brings no satisfaction; with it, even little suffices.
اللَّهُمَّ بَارِكْ لَنَا فِيمَا رَزَقْتَنَا وَقِنَا عَذَابَ النَّارِ
The Prophet (peace be upon him) taught his companions to ask for barakah in their provision and said the dua before eating. In a related hadith, when food was brought, he would say: 'Allahumma barik lana fih' (O Allah, bless it for us).