Our Shaikh (may Allaah preserve you); the questioner says: What is the ruling on the common people of the Rawaafid (shia) and how do we deal with them?
The questioner differentiates between the common people and other than them; this is a good approach. The common people who neither speak ill of the wives of the Messenger of Allaah (sallal-laahu-alayhi-wasallam) nor do they make takfeer of the Sahaabah (radiyallaahu-anhum), nor do they believe that the Qur’aan is distorted; but they have some Rafd (i.e. beliefs of the raafidah) and some hatred for the Sahaabah without making takfeer of them and what is similar to (these actions); then these ones are misguided innovators and we do not declare them disbelievers. And whoever joins their heretics in making takfeer of Muhammad’s (sallal-laahu-alayhi-wasallam) Sahaabah; in speaking ill of the wives of the Messenger of Allaah (sallal-laahu-alayhi-wasallam); in the filthy belief that the Qur’aan has been distorted, and that there is an addition and deficiency in it, then this (person) is a disbeliever similar to the disbelievers of the Yahood and Nasaaraa—there is no differentiation between their common people and their scholars (in this affair).
How do we deal with them?
If dealing with them is with regards to a worldly affair—business transactions and what is similar to that—(then) it is permissible to trade with a Jew, a Christian and a Raafidee; but as for co-operating with them in the affairs of religion, then never. [Allaah (The Most High)] said: [وَلَا تَعَاوَنُواْ عَلَى ٱلۡإِثۡمِ وَٱلۡعُدۡوَٲنِۚ] ‘’Do not help one another in sin and transgression.’’ [5:2] Rather their scholars and callers are boycotted and they are warned against.
[Source: الذريعة إلى بيان مقاصد كتاب الشريعة] [ Vol 3. Page: 595]