I found Du'a made by Khomayni (Shi'a) دعاء صنمي قريش asking Allah to take Khoulafaa (Omar, Othman, Abou Bakr) into the eternal hell. I also saw many Shi'a fatwas which say that العشرة المبشرين بالجنة are all in hell except for Ali ibn Abi Taleb.
How many Shi'a agree with Khomayni? Can I be a Shi'a without believing that the three above are in hell, and in general all Sahaba apostate except 4 of them (كتاب سليم بن قيس صفحة162)?
I want an answer according to a Shi'ite perspective.