The Qur’an insists that every prophet came with a core set of universal truths centred around Allah’s Oneness (tawhid). The Qur’an says: We have sent to every nation a Messenger [proclaiming]: ‘Worship Allah and shun false gods.’ [16:36] It is possible, therefore, for Buddhism and Hinduism to have been, in the ancient past, divinely-revealed.
Yet it is equally true that the Qur’an insists of previously-revealed religions and their scriptures that they have long suffered alteration and corruption at the hands of men, and that whatever revealed truths were once present in them have long since been forgotten, changed, compromised or overshadowed by corrupted and idolatrous beliefs and practices. So while the world’s major faiths do show similarities with Islam, this does not prove their essential unity with it as they currently exist. For they haven’t only been altered, but have also been abrogated and superseded by what was revealed to the final Prophet Muhammad ﷺ. This is why: He who seeks a religion other than Islam, it will not be accepted of him, and in the Hereafter he will be among the losers. Now whether such an explanation is passionate or dispassionate, narrow and unecumenical, or born of a “madrasah mentality,” it is the unanimous belief of Islam’s eminent sages, jurists and theologians. It is, in other words, the Quranic truth.
That said, I think it befitting to close with these words from Shaykh Bin Bayyah, one of contemporary Islam’s most revered and learned jurists: ‘Of course, a devotional life in this world should be lived in peaceful co-existence with others.’
O Allah! Bless us with iman and aman – with faith and security; and make us of benefit to Islam and to humanity, and not a harm or a hindrance to them. Amin.
Excerpt from A Perennial Problem: Is Islam the Only Valid Path to God? by Surkheel Abu Aaliyah