What this idiot doesn't understand is that, as quoted above, for Allah SWT the best and only religion for humans is "Islam" i.e. submission to Allah SWT. Proclaiming He SAW is the only God, Who has not been Begotten or Begotten anyone. The One and Unique God, nothing like Him SWT in the universe.
After Decreeing that only acceptable religion is "Islam", it is very clear that all the Prophets brought the message of "Islam" to the humanity, it cannot be any other religion, when the only acceptable religion to Allah SWT is Islam.
With the Prophethood of Prophet SAW, the last of the Prophet, Islam has been perfected and completed. The Islam which started from Adam As.
After his SAW advent, it was /is obligatory on every human being to accept him SAW as last Prophet and Islam as religion, completed and perfected according to the Decree of the Holy Quran.
Humans are to have belief on all the prophets of Allah SWT to be Muslims, therefore, without having belief on Prophet Muhammad SAW as last Prophet of Allah SWT, no one can be Muslim or follower of Islam, which was religion of all the prophets of Allah SWT.
Khawaja Asif needs some "Heavy Chittars".