Question:

Does the scholar Al-Khu’i allow talking behind the backs of non-believers?

Answer:

Abu Al-Qasim Al-Khu’i writes:

إن المستفاد من الآية والروايات هو تحريم غيبة الأخ المؤمن، ومن البديهي أنه لا إخوة ولا عصمة بيننا وبين المخالفين

,,From the revelation and traditions the prohibition from gossiping the brother in faith is clear and it is obvious, that there is neither brotherhood nor sacredness between us and the non-Shia (Mukhalif).” [Misbah-ul-Faqahah, Volume 1 page 324]