In the Qur'an, there are 40 supplications that begin with the Arabic word Rabbana (رَبَّنَا), meaning 'Our Lord'. Collectively these are known as the 40 Rabbana du'a. These are one of the best supplications a person can learn, memorize and recite.
These 40 prayers are collected in this beautifully designed booklet and can be read in both Arabic and Dutch.