Astanga Hrudaya
नावीर्यं कुरुते किञ्चित्सर्वा वीर्यकृता हि सा। गुर्वादिष्वेव वीर्याख्या तेनान्वर्थेति वर्ण्यते॥१४॥
Those who designated Guru (Heaviness) etc. eight qualities as Veerya, do so by direct implication. Out of 20 qualities, these 8 qualities are predominantly seen in any substance, these 8 qualities are stronger than the rest qualities,
english translation
nAvIryaM kurute kiJcitsarvA vIryakRtA hi sA। gurvAdiSveva vIryAkhyA tenAnvartheti varNyate॥14॥
hk transliteration by Sanscript