At 19:53 Al-Kornet al-Kata'ibi (KSS — affiliated media) quoted Kata'ib Sayyid al-Shuhada spokesman Sheikh Kadhim al-Fartousi: "the decision of the resistance factions is explicit — the response at the size of the aggression." At 20:04 the same channel quoted him saying "we do not accept the Prime Minister going to Riyadh" and that "the military response is still a matter of research and discussion." Separately, press reports carried a statement in the name of Islamic Resistance in Iraq saying "our response to the American aggression is coming and may reach its instruments in Saudi Arabia"; available evidence does not identify which constituent group authored that statement.
The gap between "decided" and "under discussion" marks where the retaliation question actually sits, and the Saudi-territory formulation raises the declared reach of any response beyond Iraqi soil.