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देवासुरा आचरन्ब्रह्मचर्यममृत्यवे तत्कतरन्नु सत्यम् ॥ २ ॥
In plain words
The gods and the asuras both kept brahmacarya so that they would not die. So which of the two is true?
Close to the Sanskrit
The gods and the asuras practised brahmacarya for the sake of immortality; that being so, which of the two, then, is true?