Rabbana means O my Lord, or to call Allah by His name. 40 Rabbana Dua is taken from the verses of the Qur'an from different passages. Rabbana is a word which is used in the beginning of 40 Dua. This prayer has been recite many of prophets and as a result Allah showered His mercy on them. That is why it is called 40 Rabbana. What happens when you read 40 Rabbana? Anyone who incorporates any of the 40 Rabbana Dua into their life...