Ibrahim Tamimi reported on the authority of his father that Sayyidina Ali (RA) delivered to them a sermon, saying: If anyone thinks that we have anything else that we read besides Allah’s Book and this Sahifah (a scripture), a sahifah in which is mentioned blood wit of camels and wounds, then he is a liar. Allah’s Messenger (SAW) said that Madinah is sacred between (the places) Ayr and Thawr. Hence, if anyone innovates here a bid’ah or gives protection to an innovator then on him is the curse of Allah, the angels, and the people, all together. Allah will not accept from him, on the Day of Resurrection, any worship whether obligatory or supererogatory. And if anyone relates himself to other than his father, or cites as his emancipator other than the real one then on him is the curse of Allah, the angels and the people all together and no obligatory or supererogatory worship will be accepted from him. And, the protection given by the Muslims is the same, the lowest of them may offer it (and all will then have to respect it).”
[Bukhari 1870, Muslim 1370]
--------------------------------------------------------------------------------