Shiva Purana
तेजो दशगुणेनैव वायुना बहिरावृतम् ॥ आकाशेनावृतो वायुः खं च भूतादिनावृतम् ॥ ३४ ॥
The Tejas is enveloped by Vāyu ten times bigger. Vāyu is enveloped by Ākāśa and Ākāśa is enveloped by Bhūtādi.
english translation
tejo dazaguNenaiva vAyunA bahirAvRtam ॥ AkAzenAvRto vAyuH khaM ca bhUtAdinAvRtam ॥ 34 ॥
hk transliteration by Sanscript