Surya Siddhanta
रथे विश्वमये चक्रम् कृत्वा सम्वत्सरात्मकम् । छन्दाम्स्य् अश्वाः सप्त युक्ताः पर्यटत्य् एष सर्वदा॥
He always traverses the universe, controlling the scriptures (cchanda) with his seven horses, in his chariot whose wheels consist of the entire year.
english translation