द्विवितस्तिररत्निः प्राजापत्यो हस्तः ॥ कZ_०२.२०.१२ ॥
dvivitastiraratniḥ prājāpatyo hastaḥ
Deux vitastis font un aratni ; c’est le prājāpatya hasta (la mesure standard de «coudée/main»).
It enables predictable scaling from small to large measurements, preventing manipulation in bills of quantity and labor/output reporting.