Muhammad received revelations aside from the Quran
There are numerous examples in the Quran that the prophet received revelations referenced in the Quran that occurred outside the Quran. Below are three examples.
- Changing of the Qibla (2:142-145)
- One of the prophet’s wives spread a hadith from the prophet (66:3)
- The prophet commanded to marry the divorced wife of his adopted son (33:37)
The argument typically goes that since there were revelations outside of the Quran, therefore, we are obliged to accept Hadith. Again, this is a non sequitur because it presupposes that the Hadith we have today are actual sayings from the prophet rather than the conjecture they actually are.
But that aside, the simple rebuttal to this argument is that if we were with the prophet, we would have to obey any command he gave us. This was the responsibility of the people who lived with him, but these revelations that he received were only relevant to his immediate time and place. Any revelation that is binding to people of the future generations will all be encompassed in the Quran. The lessons we are to take from these revelations he received outside of the Quran are all contained within the Quran.