that a truce is valid only when it is limited to a specific period; others held that the imam may dissolve the truce even while the other party is discharging its duties. The sound position is a third view: a truce may be concluded either without a term or with one.
As for an open-ended truce, it is permissible yet non-binding; the ruler may choose to maintain it or to revoke it. A time-limited truce, however, is binding.