What is the meaning of *hadath* in the hadith: "Madinah is a sanctuary from 'Ir to Thawr; whoever introduces a *hadath* in it..."?

The questioner : A questioner says: Or he asks about the meaning of *hadath* in the hadith of the Messenger of Allah (peace and blessings be upon him): What is meant by *hadath*? Is it a sin?

The Shaykh : I do not think that it is a sin, because if we said it was a sin, then every sin in Madinah would be a major sin, because he says: But what is meant by *hadath* is a *hadath* in religion, such as religious innovation and the like. For this reason, one must be more cautious of religious innovations in Madinah than one must be of them in other places, because a *hadath* in Madinah is a grave matter, since Madinah is the destination of revelation and the place of the Prophet's (peace and blessings be upon him) migration. So if a person introduces a *hadath* in it, this becomes one of the greatest forms of opposition to Allah (Mighty and Majestic) and rivalry with Him. So what is meant by *hadath* here is a *hadath* in religion.