Al-Allaama Siddeeq Hassan Khaan (rahimahullah) stated:
And we have already seen the Raafidhah of India; they call themselves Al-Imaamiyyah and Ash-Shee-ah. They believe in declaring the Sahaabah disbelievers, and without a doubt they abuse them openly in their books and with their tongues, and they curse them. Likewise, they are immersed in complete blindness in India and in other places. Indeed, they are QARAAMITAH in origin.
And when it is firmly established by way of the Qur’aan and the Hadeeth that these ones are disbelievers, then it is obligatory to issue against them the judgement that is issued against the disbelievers in all of the affairs and rulings of the Religion, with regards to abandonment of marriage (with their women); no jihaad alongside them; refuting their creed and open rejection of their actions and that they are upon other than Islaam. And with regards to the reality about them, they are the filthiest amongst the (deviated) sects in the world. Source:(Ad-deenul Khaalis. 3/408-409) [Translated by Abu Mu-aawiyyah (Abdullaah Al-Gambi)