===Učenci se mohou mýlit===
Everyone can be wrong. For example Muhammad could have been wrong when he assumed he is a prophet and Muslims can be wrong by believing in Islam. Since everyone can be wrong and this argument could be used against both sides, it is not a valid argument for any side.
This is also an act of [[w:Shooting the messenger|shooting the messenger]], an ad hominem fallacy. Muslims have traditionally regarded Islamic scholars as expert authorities on all religious matters. In fact, Islam split into many schools of law ( madhhabs) over the centuries because each school considered specific scholars as the sole authorities. If Muslims now want to discredit their own scholars because of such embarrassing claims, they are putting the entire Islamic argument —that Islam is the only true religion, it is perfect and it is from God—on shaky ground. One may wonder, "What is the real history of Islam and what are the correct Islamic laws if the scholars are dismissed by their own followers? Were they all liars or fabricators? And why?"
===Aláh se nikdy nemýlí===