Rig Veda
सदो॒ द्वा च॑क्राते उप॒मा दि॒वि स॒म्राजा॑ स॒र्पिरा॑सुती ॥ सदो द्वा चक्राते उपमा दिवि सम्राजा सर्पिरासुती ॥
Two of like beauty and of royal rank (Mitra and Varuṇa), worshipped with oblations of clarified butter,have taken their seat in heaven.
english translation