Charak Samhita
खरद्रवचलोष्णत्वं भूजलानिलतेजसाम्। आकाशस्याप्रतीघातो दृष्टं लिङ्गं यथाक्रमम् ॥२९॥
Prithvi, jala, agni/tejas, vayu and akasha are characterized by kharatva (roughness), dravatva (liquidity), ushnatva (heat), chalatva (mobility) and apratighatatva (unobstructibility) respectively.
english translation
kharadravacaloSNatvaM bhUjalAnilatejasAm। AkAzasyApratIghAto dRSTaM liGgaM yathAkramam ॥29॥
hk transliteration by Sanscript