کتاب Arba‘īn اثر Ali Dezhakam نشر مجمع جهانی اهل بیت

Although the number 40 is an exact number in appearances, it has a complex and mysterious meaning. Some of the meanings in context with the number 40 have been spoken of. But, if we are to judge fairly, we will have to say that "Arba'īn" (the number 40) is a skilled and capable keeper of secrets. Perhaps the Creator of the world wanted the seal to remain on closed lips for the good of the world.