Dhammapada Verse 1.9

Sanskrit Verse

यश्च वान्तकषायः स्यात् शीलेषु सुसमाहितः । उपेतो दम-सत्याभ्यां स वै काषायमर्हति ॥

Bhikkhu Ānandajoti's translation

The one who, while still impure, would wear the renunciant’s robe, unendowed with restraint and truth, is not worthy of the renunciant’s robe.