Srimad-Bhagavatam: Canto 5 - Chapter 1 - Verse 12
Sanskrit:
स्वगोभि: पितृदेवेभ्यो विभजन् कृष्णशुक्लयो: ।प्रजानां सर्वासां राजान्ध: सोमो न आस्त्विति ॥ १२ ॥
ITRANS:
sva-gobhiḥ pitṛ-devebhyovibhajan kṛṣṇa-śuklayoḥprajānāṁ sarvāsāṁ rājā-ndhaḥ somo na āstv iti
Translation:
[The inhabitants of Śālmalīdvīpa worship the demigod of the moon in the following words.] By his own rays, the moon-god has divided the month into two fortnights, known as śukla and kṛṣṇa, for the distribution of food grains to the pitās and the demigods. The demigod of the moon is he who divides time, and he is the king of all the residents of the universe. We therefore pray that he may remain our king and guide, and we offer him our respectful obeisances.