Muntakhab al-tawarikh 65.4.2

65.4.2

If among the believers there be any devoid of faith (iman), or guilty of any sin which destroys their former works, and in accordance with the dictates of the Qur'an become worthy of 'adawat they are excepted (from the rights of mahabbat) and enquiry should be made into their faith or absence of faith. Inasmuch as does not necessarily exclude iman (faith) it is not lawful to curse such an one, nor to display tabarra against him, but rather to pray for his pardon; as long as he retains iman it is lawful to entertain mahabbat for him, and 'adawat on religious grounds is unlawful, inasmuch as tabarra and sabb (reviling) are only justifiable when mahabbat for a person no longer remains, which is restricted to death in infidelity. Now we must consider the words of the Shiah divines who consider opposition to and contention regarding the Khilafat of 'Ali as kufr, according to the words of Khwaja Nasir Tusi "Mukhalifuhu fasaqah wa muharibuhu kafarah", "Those who oppose him are immoral and those who fight against him are infidels." Accordingly a section who have contented themselves with opposition are not deserving of tabarra, because their extreme fault is fisq (immorality) and the fasiq (immoral man) may be a true believer. The above is translated from the Tuhfa-i-Isna 'ashariyah of Shah 'Abdu'l 'Aziz of Dihli.