What is the ruling of Sharia on reciting Hizb al-Imam al-Nawawi (May Allah Have Mercy on Him) : {In the name of Allah, Allah is the Greatest, Allah is the Greatest, Allah is the Greatest. I say it upon myself, upon my religion, upon my family, upon my children, upon my wealth, upon my companions, upon their religions, upon their possessions. A thousand times: In the name of Allah, Allah is the Greatest, Allah is the Greatest, Allah is the Greatest}; particularly the phrase {upon their religions}? Moreover, is attributing this Hizb to al-Imam A-al-Nawawi valid?