This book can no longer be found in its original form as a result of tampering. Hence, Muslims are required to only believe in the truth and validity of the original, uncorrupted version of the Tawrat. By the same token, we are to reject all existing, corrupted editions of the Tawrat.
Among the books considered to be revealed, the four mentioned by name in the Qur'an are the Torah (revealed to Moses), the Psalms (Zabur) (revealed to David), the Injil (Gospel) (revealed to Jesus), and the Qur'an itself.
The Injil is the holy book, also known as the Gospel. It was revealed to Prophet Isa (AS), a prophet born of a miraculous birth, who performed several miracles by Allah’s leave. Isa (AS) delivered the message of Allah to the children of Israel. In Surah Al Ma’idah, Allah mentions that He sent Isa (AS) with the Injil, confirming the Tawrat which preceded him. It contained guidance and light and confirmed what came before it of the Tawrat as guidance and instruction for the upright.
Moreover, it differs from the other revealed books in its preservation. While no other holy book’s pure nature has withstood the test of time, the Quran remains unchanged fourteen centuries after its arrival. The Quran is remarkably unique in many ways. Its miraculous nature ensures that no one can imitate it, to even a minute degree.
The Scrolls of Abraham are the part of the religious scriptures of Islam. These scriptures are believed to have contained the revelations Abraham received from God, which were written down by him as well as his scribes and followers. They are now generally believed to have perished over the course of time and are considered a lost body of scripture.
Islamic Holy Books are the texts which Muslims believe were authored by God through various prophets throughout humanity’s history. All these books, in Muslim belief, promulgated the code and laws that God ordained for those people.
The Quran is viewed to be the scriptural foundation of Islam and is believed by Muslims to have been sent down by God (Allah) and revealed to Muhammad by the angel Jabreel (Gabriel). The Quran has been subject to criticism both in the sense of being studied by secular, (mostly) Western scholars who set aside doctrines of its divinity, perfection, unchangeability, etc. accepted by Muslim Islamic scholars; but also in the sense of being found fault with by those — including Christian missionaries and other skeptics hoping to convert Muslims — who argue it is not divine, not perfect and/or not particularly morally elevated.
The Zabur is the holy book referred to as the book of Psalms in the Noble Quran. Zabur was revealed to Dawud (AS), so that he may invite his people to the right path. Muslims are to affirm that the Zabur, in its original form, was a revelation of Allah. On the other hand, any versions of it that exist currently shall not be endorsed or deemed divine in origin. This is because it, like the Tawrat, was altered and stripped of its initial authenticity.
Belief in divine books is the third article of faith in Islam. Thus, a Muslim is required to believe in all the holy books of Allah. In Surah Al Baqarah, Allah states that those who believe in the Quran and the earlier revelations and have firm faith in the Afterlife are the rightly guided.
One is the Zabur, also knowns as the Psalms, sent to David (Dawud). Another is the Torah sent to Moses (Musa). Then, we have the Injeel, also known as the Gospel, sent to Jesus (Isa). Lastly, there is the Quran sent to Prophet Muhammad (PBUH). Believing in these four holy books is a core belief in Islam. Rejecting them means that you reject an article of faith, which is one of the core beliefs of the religion.
He has sent down upon thee the Book with the truth, confirming what was before it, and He sent down the Torah and the Gospel aforetime, as guidance to the people, and He sent down the Salvation.(Qur'an 3:3-4 Arthur Arberry translation)
The Injil was the holy book revealed to Jesus (Isa), according to the Quran. Although some lay Muslims believe the Injil refers to the entire New Testament, scholars assume that it refers not to the New Testament but to an original Gospel, given to Jesus as the word of Allah. Therefore, according to Muslim belief, the Gospel was the message that Jesus, being divinely inspired, preached to the Children of Israel. The current canonical Gospels, in the belief of Muslim scholars, are not divinely revealed but rather are documents of the life of Jesus, as written by various contemporaries, disciples and companions. These Gospels, in Muslim belief, contain portions of the teachings of Jesus, but neither represent nor contain the original Gospel from Allah, which has been corrupted and/or lost.
According to the Quran, the Torah (Tawrat) was revealed to Moses (Musa) but the Quran argues that the current Torah has suffered corruption over the years, and is no longer reliable. Moses and his brother Aaron (Hārūn) used the Torah to preach the message to the Israelites (Banu Isrā’īl).
The biblical David, who was, according to the Hebrew Bible, the second king of the United Kingdom of Israel and Judah, reigning c. 1010–970 BCE, is also venerated in Islam as a prophet and messenger of God, and as a righteous, divinely-anointed monarch of the ancient United Kingdom of Israel, which itself is revered in Islam. Additionally, Muslims also honor David for having received the divine revelation of the Psalms. Mentioned sixteen times in the Quran, David appears in the Islamic scripture as a link in the chain of prophets who preceded Muhammad. Although he is not usually considered one of the "law-giving" prophets, "he is far from a marginal figure" in Islamic thought. In later Islamic traditions, he is praised for his rigor in prayer and fasting. He is also presented as the prototypical just ruler and as a symbol of God's authority on earth, having been at once a king and a prophet. David is particularly important to the religious architecture of Islamic Jerusalem.
All the holy books were revealed as the uncreated word of Allah. Islam is ahead of the other Abrahamic faiths (Judaism and Christianity), with regard to its affirmation of Allah’s revelations. The Quran, in Surah Al Hadid, affirms the fact that Allah revealed divine books to His messengers to guide their people.
The Holy Quran is the final Word of Allah, and He vowed to shield it from corruption and distortion. It confirms the truth of the previous texts and abrogates them, establishing its esteemed status as the sole divine book whose laws must be adhered to.
The last holy book that Allah revealed is the Quran, sent down to Prophet Muhammad (PBUH). The Quran is the word of Allah. It is a book of guidance for all Muslims and contains much beneficial information. It includes stories of past prophets and events, and also addressed events during the time of Muhammad (PBUH).