إِنَّ بَنِي عَمِّكَ فِيهِمْ رِمَاحٌ
Indeed, among your kinsmen there are spears as well.
The spear-display in the first line suggests that Shaqīq is asserting superiority. The response adds inna because his demeanor points to disregarding the other party’s armed capacity.
The distinction is subtle: no explicit denial by Shaqīq is quoted. Rather, a sign suggestive of denial warrants treating him as a denier. The content of the report and its emphatic shape are connected by that contextual clue.