Rig 1.164.01
अस्य वामस्य पलितस्य होतुस्तस्य भ्राता मध्यमो अस्त्यश्नः। तृतीयो भ्राता घृतपृष्ठो अस्यात्रापश्यं विश्पतिं सप्तपुत्रम्॥
May the gray-haired middle brother of this left one be the offerer (priest) who is eating. I have seen the third brother, standing on the back of ghee, here, the Lord of Wealth with seven sons.