None except the purified ones can reach it (to obtain the knowledge it contains. And none except those cleansed of material and spiritual impurities should touch it)
The Book which none but the pure of mind can touch. (Those who approach the Qur'an with minds contaminated with preconceived notions and extrinsic material, will never understand it)
Only those who are (physically and ritually) clean, (are allowed to) touch it
Dr. Kamal Omar
Shall not approach it (for direct understanding) except Al-Muttahharun (those who have been cleansed of non-Divine human-influences in the matters of Religion)
None but the purified (from the dirt of shirq – duality – animalistic nature) can touch it (i.e. become enlightened with the knowledge of the Absolute Reality).
Al-muntakhab fi tafsir al-Qur'an al-Karim
A Quran that is not to be touched or taken in the hands which are not free from dirt or filth or not free from ceremonial or sanitary defilement, nor in the hands of anyone who has had sexual congress until he or she has bathed