Dr Nazir-Ali saw the Muslim document as wanting disalogue only on the basis of the Islamic belief in the unity of God.
The document gives detailed quotations from the Koran emphasising the unity of God (the key verse here being Koran 3:64 - "Say, 'O followers of the scripture, let us come to a logical agreement between us and you: that we shall not worship except GOD; that we never set up any idols besides Him, nor set up any human beings as lords beside GOD.' If they turn away, say, 'Bear witness that we are submitters'.") The bishop reportedly said of this: "One thing the document implies is that Christians have compromised their monotheism. It does this by implication, with all the business of saying we must agree that God is only one and not associated with partners, that we must not take others for Lord. It refers to various verses in the Koran which accuse Christians of taking Jesus and others as their Lord besides Allah." And further:- "This verse says that if we are going to talk it must be on the basis that you [the Christians] are no longer associating others with God. What I would say to that is that Christians uphold belief in one God vigorously but our understanding of the oneness of God is not the Muslim understanding."