सेवितं सततं राजन पुरा राजर्षिसत्तमै: । क्षत्रधर्मपरैर्नित्यं सत्यव्रतपरायणै:
sevitaṃ satataṃ rājan purā rājarṣisattamaiḥ | kṣatradharmaparair nityaṃ satyavrataparāyaṇaiḥ ||
राजन्! प्राचीन काल में क्षत्रधर्म का पालन करने वाले और सदा सत्यव्रत में स्थित श्रेष्ठ राजर्षि इस (मन्त्र/अनुष्ठान) का निरन्तर सेवन करते थे; वे इसका सतत जप किया करते थे।
भीष्म उवाच
The verse upholds an ethical ideal for rulers: true kṣatriya-dharma is inseparable from satya (truth). The highest kings are portrayed as those who continually practice a revered discipline (implied mantra/observance) while remaining unwavering in truthful vows.
Bhīṣma, instructing the king, appeals to ancient precedent: he says that the foremost royal sages of earlier times constantly practiced/recited this tradition, emphasizing their devotion to warrior-duty and truth as the model for present conduct.