Christian countries. How could seeking after knowledge among the heathen be acceptable to God, and seeking it among the People of the Book be repugnant to Him? Furthermore, in the Battle of the Confederates, Abú Súfyán enlisted the aid of the Baní Kinánih, the Baní Qahtán and the Jewish Baní Qurayzih and rose up with all the tribes of the Quray_sh_ to put out the Divine Light that flamed in the lamp of Ya_th_rib (Medina). In those days the great winds of trials and tribulations were blowing from every direction, as it is written: “Do men think when they say ‘We believe’ they shall be let alone and not be put to proof?”(14) The believers were few and the enemy attacking in force, seeking to blot out the new-risen Sun of Truth with the dust of oppression and tyranny. Then Salmán (the Persian) came into the presence of the Prophet—the Dawning-Point of revelation, the Focus of the endless splendors of grace—and he said that in Persia to protect themselves from an encroaching host they would dig a moat or trench about their lands, and that this had proved a highly efficient safeguard against surprise attacks. Did that Wellspring of universal wisdom, that Mine of divine knowledge say in reply that this was a custom current among idolatrous, fire-worshiping Magians and could therefore hardly be adopted by monotheists? Or did He rather immediately direct His followers to set about digging a trench? He even, in His Own blessed person, took hold of the tools and went to work beside them. It is moreover a matter of record in the books of the various Islamic schools and the writings of leading divines and historians, that after the Light of the World had risen over Ḥijáz, flooding all mankind with Its brilliance, and creating through the revelation of a new divine Law, new principles and institutions, a fundamental change throughout the world—holy laws were revealed which in some cases conformed to the practices of the Days of Ignorance.(15) Among these, Muḥammad respected the months of religious truce,(16) retained the prohibition of swine’s flesh, continued the use of the lunar calendar and the names of the months and so on. There is a considerable number of such laws specifically enumerated in the texts: