Yusuf Estes, originally named Joseph Estes, is an American Islamic preacher. He converted to Islam in 1991. Before converting, he had a background in business and Christian ministry. He tells the interesting story of his conversion to Islam from a Christian preacher. Once before his conversion, he had two visitors in his house. One was a Catholic priest, and the other was a Muslim named Mohammed. Yusuf wanted to convert the Catholic priest to his protestant sect and also wanted to convert the Muslim visitor to Christianity. Thus, as a Christian preacher, he wanted to kill two birds with the same stone. But things did not go as he had planned. He explains what happened in the following text:

“After settling in, we all began to gather around the kitchen table after dinner every night to discuss religion. My father would bring his King James Version of the Bible. I would bring out my Revised Standard Version of the Bible, which says in it that King James Version has grave mistakes, grave errors, and defects in it. My wife had another version of the Bible (maybe something like Jimmy Swaggart's 'Good News For Modern Man’.) The priest, of course, had the Catholic Bible which has 7 more books in it than the Protestant Bible. So, we spent more time talking about which Bible was the right one or the most correct one than we did trying to convince Mohammed (Muslim visitor) about becoming a Christian.”

“At one point I recall asking him (Muslim) about the Quran and how many versions of it there were in the last 1,400 years. He told me that there was only one Quran. And that it had never been changed. Yet he let me know that the Quran had been memorized by hundreds of thousands of people, in it's entirety, and was scattered about the earth in many different countries. Over the centuries since the Quran was revealed, millions have memorized it completely and have taught it to others who have memorized it completely, from cover to cover, letter perfect without mistakes. Today, over 9 million Muslims have memorized the entire Quran from cover to cover. This did not seem possible to me. After all, the original languages of the Bible have all been dead languages for centuries and the documents themselves have been lost in their originals for hundreds and thousands of years. So, how could it be that something like this could be so easy to preserve and to recite from cover to cover.” 

Yusuf Estes was thus very impressed to know that the Holy Quran is preserved so well and, unlike the Bible, has only one undisputed version. Everyone has the same Quran without even the change of a dot. After some more research, Yusuf Estes ultimately decided to become Muslim. He is now a great preacher of Islam and a very nice person.

Special protection and preservation of the Holy Quran are also part of its miraculous nature. It is a historical fact known to almost everyone that the present-day Holy Quran is the same Holy Quran that was revealed to the last prophet, that is, Prophet Muhammad PBUH. A special guarantee for protection was provided by Allah SWT to His final message, which is present in the form of the Holy Quran. This is mentioned in the Holy Quran in the following verse:

The meticulous historical record of the Holy Quran’s preservation, including memorization and written transmission, is seen as evidence of this divine promise. Today and throughout history, millions of people have learned its Arabic text by heart. Exactly the same text without any change. In every era since the revelation of the Holy Quran, numerous people have memorized the entire Holy Quran. It is estimated that around 200 million people in the world today have memorized the whole Quran. Thus, it is impossible to change, as it is recorded word by word in the hearts of so many people, including small children. Therefore, no one can change its text even a single letter. This reminds me of the distributed ledger of modern blockchain technology that makes a record immutable.