قَالَ اللَّهُ إِنِّي مُنَزِّلُهَا عَلَيْكُمْ ۖ فَمَن يَكْفُرْ بَعْدُ مِنكُمْ فَإِنِّي أُعَذِّبُهُ عَذَابًا لَّا أُعَذِّبُهُ أَحَدًا مِّنَ الْعَالَمِينَ ﴿115﴾
Allah said: "I am going to send it down unto you, but if any of you after that disbelieves, then I will punish him with a torment such as I have not inflicted on anyone among (all) the 'Alamin (mankind and jinns)." (115)
Muslim Scholars define the Quran as this: The Arabic speech of Allah that was revealed to the Prophet Muhammad (صلى الله عليه و سلم) both in word and in meaning. It is collected between the two covers of the mushaaf, was narrated in mutawaatir chains, and is a challenge to humankind.
We can learn five important things about the Quran from this definition.
One other important part of the definition of the Quran is that Allah promised that He will protect it, until the end of time–and that promise doesn’t apply to anything else (such as the sunnah, or the Hadith Qudsi).
And we thought we knew the Quran!
May Allah allow us all to become saahibul-Quran, Companions of the Quran, those whom Allah will give the highest level of jannah (ameen)!
Yasir Qadhi. Lecture. AlMaghrib. Route 114: Quranic Sciences. University of Toronto, Scarborough Campus, March 2008.