In Arabic language, there is a distinct form to name two entities. So, the plural form (here, as well as in general) denotes at least three entities. Therefore, the word salawat (prayers) denotes at least three prayers. The middle prayer is mentioned as an addition to these. So, to be able to find how many times we should pray, we have to find the next number having a ‘middle’ after 3, in other words the next odd number after 3, which is ‘5’. Therefore, considering the prayers and the middle prayer, we find out from the Qur’an that the number of prayers is at least five times a day.