Shiva Purana
यश्शिवं मण्डले सौरे संपूज्यैव समाहितः ॥ प्रातर्मध्याह्नसायाह्ने प्रदद्यादर्घ्यमुत्तमम् ॥ ३५ ॥
He who worships Lord Śiva in the solar system with concentration One should offer the best arghya in the morning, noon and evening.
english translation
yazzivaM maNDale saure saMpUjyaiva samAhitaH ॥ prAtarmadhyAhnasAyAhne pradadyAdarghyamuttamam ॥ 35 ॥
hk transliteration by Sanscript