Let us see how shia praised scholar deal with ahlesunnah.
Book: Al-Fayd Al-Qudsi fee Tarjamat Al-‘Alamah Al-Majlisi (biography of Al-Majlisi)
Author: Al-Hajj Al-Mirza Hussein ibn Muhammad Taqi Al-Nuri a.k.a. Al-Muhadith Al-Nuri (1254-1320H)
Tahqeeq: Al-Sayid Ja’far Al-Nabawi
“Mawlana Haydar Ali ibn Al-Mawla Mirza [Muhammad]4 Al-Shirwani, he was Revered Noble, and a Grand Scholar, as we have known of him from his comments on “Al-Masalik” and other [works], which even though were not much, yet they managed to demonstrate the nobility of its writer”
 What is between the brackets can be found in the original source
Chapter 4 p. 251
“And overall he was from the people of virtue, and even though he was also from the people of piety and Zuhd (asceticism), it appeared from him views [and sayings] which were unique to him and which was criticized of him, even though some of these [views] where held by others than him. I heard our Teacher and our noble reference the unique and grand scholar Mawlana Ali Asghar May Allah be pleased with him narrating [about him] that he used to curse all the scholars except Al-Sayid Al-Murtada and his father Al-‘Alamah.
“And it has been verified about him that he used to invite Ahl Al-Sunnah to his house, and remains patient with them until he gets an opportunity and is able to accomplish what he wants, so he takes a knife/blade with his shivering hands, since he had passed his 90th year [at the time], and places it in the throat of one of them killing him in the utmost viciousness1”.
 The word used is Zajr which means to stop or forbid [in Arabic], however in the Persian language it means “pains, hatred/disgust, and harm”, and Zajr in this sentence refers to the harm since the author was Iranian, he used this word out of forgetfulness as in several locations.
“And the Haydariya [group] attributed to him used to fast, and when they wish to break their fast with something Halal,they walk to the stores of Ahl Al-Sunnah or their homes and steal something [from there] and break their fast with it2, …”
 Rather this is from the strange rejected views that against it are the majority of scholars from old and recent, rather what is famous and what is a claimed consensus as in “Sharh Al-Irshaad” by Al-Ardabeel, and “Sharh Al-Mafateeh” by the grand teacher Al-Bahbahani is: the impermissibility of taking the money of the Nawasib who the reports in their criticism [is plenty] and the permissibility of taking what is for them has been mentioned, so how can it be [permitted] for someone else
“ … and from their views are: None establishment of fasting on Mondays – or that it is forbidden – even if it coincides with the Day of Ghadeer, and from it: there ruling upon all those who are not Imamiya (12er Shiahs) that they have left the fold of Islam, and rule that they are Filth (Najis), as well as all those who doubt that (i.e. anyone that doubts that non-Imamiya are outside the fold of Islam or are Filth, receives the same ruling), as well as his other views …”
“And he has a treatise establishing the Filthiness (Najasah) of non Imamies (non-Twelver Shiahs) and that they have left Islam, and Al-Mawla Zayn Al-Deen Al-Khawansari has a treatise in which he replies on him”.
(end of translation)
NOTE: Bold text from book itself, other from the footnotes.