ibn hazm said that is that abu bakr, omar, othman, sa'd ibn abi waqqas and talha planified to kill Rasul Allah (SAWAS) in Tabuk, and the isnad is sahih if we look the books of rijal. And Ibn Qutaybah said that they killed muhsin (as) the son of Fatima (as) and Imam Ali (as) and they killed Fatima Az Zahra (as) And they try to kill Imam Ali (as), abu bakr and omar said khalid ibn al walid to kill Imam Ali (as) in the history book it is written that it was "atwal salat as sobh" al albany said that is sahih and there more hadith who said it. Ahmed ibn hanbal said that omar ibn al khattab after ghadir khum said "congratulation Ya Ali ibn abi Taleb, you are the master of mumin and muminat"