There are two issues to your request. First and foremost, it is important to assess why there is no Barakah. If we prescribe some Du’aa for Barakah but the causes of no Barakah are not identified, then no amount of Du’aa will bring Barakah.
Some of the things that take away Barakah in one’s earnings is:
1. Committing sins.
2. Not performing the five daily Salaats. In the case of males, not performing Salaat in the Musjid.
3. Not spending within one’s means and confining one’s expenses to the needs.
If one adheres to the above three advices, then there is no reason for one not having Barakah in one’s earnings. One great scholar advised, ?When you have a need, then only go to the Bazaar. Don?t go to the Bazaar and look for your needs.? There is a big difference between the two approaches. In the first approach, you exercise restraint and save your income. In the second one, you are bound to spend more than the need. How is it then expected to have Barakah?
Apart from adhering to the above three advices, also recite ?Allaahumma ikfiniy bi halaalika an haraamika, wa aghniniy bi fadhlika amman siwaaka?.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai