SB 8.19.38

TEXT 38
 
TEXT
अत्रापि बह्वृचैर्गीतं शृणु मे ऽसुरसत्तम ।
सत्यमोमिति यत्प्रोक्तं यन्नेत्याहानृतं हि तत् ॥ ३८ ॥
atrapi bahvrcair gitam
srnu me 'sura-sattama
satyam om iti yat proktam
yan nety ahanrtam hi tat
atra api-in this regard also (in deciding what is truth and what is not truth); bahu-rcaiḥ-by the sruti-mantras known as Bahvrca-sruti, which are evidence from the Vedas; gitam-what has been spoken; srnu-just hear; me-from me; asura-sattama-O best of the asuras; satyam-the truth is; om iti-preceded by the word om; yat-that which; proktam-has been spoken; yat-that which is; na-not preceded by om; iti-thus; aha-it is said; anrtam-untruth; hi-indeed; tat-that.
TRANSLATION
One might argue that since you have already promised, how can you refuse? O best of the demons, just take from me the evidence of the Bahvrca-sruti, which says that a promise is truthful preceded by the word om and untruthful if not.

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