Shiva Purana
तदर्वाग्बाह्यलिंगं स्यादंतरंगं तदूर्ध्वकम् । तदर्वाक्छक्तिलोका हि शतं वै द्वादशाधिकम् ७८ ।
The external liṅga is beneath that point and the internal one is beyond. The Śaktilokas numbering hundred and twelve are beneath that point.
english translation
tadarvAgbAhyaliMgaM syAdaMtaraMgaM tadUrdhvakam । tadarvAkchaktilokA hi zataM vai dvAdazAdhikam 78 ।
hk transliteration by Sanscript