2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177774We present a proper off-mass-shell extension of the chiral reduction formula (CHRF) proposed by Yamagishi and Zaned. This is achieved by rewriting the CHRF in a manifestly consistent form with the conventional LSZ reduction formula.v.2. 16 pages; v.3. 11 pages, Version to apper in Prog. Theor. PhysHigh Energy Physics - PhenomenologyNuclear Theorytext