Surah 9. Al-Tawba, Ayah 12

Lit., "if they break their oaths after their covenant". This obviously refers to unbelievers who, without having renounced their own beliefs, have concluded treaties of friendship with the Muslims. Their subsequent "breaking of the solemn pledges" is an allusion to the breach of the truce of Hudaybiyyah by the pagan Quraysh, which, in turn, led to the conquest of Mecca by the Muslims in the year 8 H.

The word imam (of which a'immah is the plural) denotes not merely a "leader" but also - and primarily - "a person who is an object of imitation by his followers" (Taj al-'Arus): hence, a "model", or "exemplar", or "archetype". The term kufr, which usually signifies a "denial of [or "refusal to acknowledge"] the truth", is rendered here as "faithlessness" because it refers, specifically, to a deliberate breaking of solemn engagements.

Not only did the enemies break their oaths shamelessly, but they even taunted the Muslims on their Faith and the "simple-minded" way in which they continued to respect their part of the treaty, as if they were afraid to fight!