Surya Siddhanta
अथ सृष्ट्याम् मनश् चक्रे ब्रह्माहङ्कारमूर्तिभृत् । मनसश् चन्द्रमा जज्ञे सूर्यो +अक्ष्णोस् तेजसाम् निधिः॥
Then Brahmä, being the form of principle of consciousness (ahankara), wanting to create, created the moon from his mind and from the light of his eyes created the sun (Sürya), the repository of light.
english translation