* In the Qur'an the precise wording is from Allah, while in the hadith qudsi the wording is given by the Prophet Muhammad.
* The Qur'an has been brought to Muhammad (SAW) only by the Angel Gabriel (AS), while hadith qudsi may also have been inspired otherwise, such as e.g. in a dream.
* The Qur'an is inimitable and unique, but not so the hadith qudsi.
* The Qur'an has been transmitted by numerous persons, (tawatur) but the hadith and hadith qudsi often only by a few or even one individual. There are hadith qudsi which are sahih, but also others hasan, or even dhaeef, while there is no doubt at all about any ayah from the Qur'an.
Hadith qudsi cannot be recited in prayer.