Although no explicit Covenant was established in any previous age or Dispensation, yet the followers of the Qur’án say that the Apostle of God—may the life of the worlds be offered up for His sake—stated at *Gh* adír-i-*Kh*umm: “Whoever hath Me as his Master, hath ‘Alí as his Master.”111 <https://www.bahai.org/library/authoritative-texts/abdul-baha/light-of-the-wo...> Likewise, the Christians say that the One Who is the Spirit—may the soul of all existence be sacrificed for Him—addressed Simon, known as Peter, with these words: “Thou art Peter, and upon this rock I will build My church.”112 <https://www.bahai.org/library/authoritative-texts/abdul-baha/light-of-the-wo...> Now, in this Most Great Dispensation, the Covenant hath been conclusively established in clear terms and unmistakable language, leaving room for no interpretation whatever, in the Most Holy Book—a Book that abrogateth all the Sacred Scriptures of the past, and whose laws have annulled whatever laws in other Tablets that are not in conformity with it. Furthermore, in the book of the divine Covenant and Testament, revealed by the Pen of Glory and named “The Book of the Covenant”, Bahá’u’lláh entered into a Covenant with all created things. In all His Tablets and prayers, He hath made firm adherence to the divine Covenant and Testament to be the surest means of receiving heavenly bestowals, that all may apprehend the majesty and grandeur of that Covenant and Testament. Note: 111: A reference to the Ḥadí*th* that the Prophet Muḥammad delivered a sermon at *Gh*adír-i-*Kh*umm in which He stated: “Whoever hath Me as his Master, hath ‘Alí as his Master.” The *Sh*í‘ihs consider this verbal statement to be authoritative and on its basis believe ‘Alí to be the lawful successor to the Prophet. Note: 112 Matthew 16:18. ‘Abdu’l‑Bahá, Light of the World. Available from www.bahai.org/r/512166244