Shiva Purana
ईशत्वादेव मे नित्यं न मदन्यस्य कस्यचित् । आदौ ब्रह्मत्त्वबुद्ध्यर्थं निष्कलं लिंगमुत्थितम् ३९ ।
Therefore these activities devolve on me because I am Īśa and not on anyone else. It is to make my Brahmatva understood that my phallic emblem rose up.
english translation
IzatvAdeva me nityaM na madanyasya kasyacit । Adau brahmattvabuddhyarthaM niSkalaM liMgamutthitam 39 ।
hk transliteration by Sanscript