18 Citra is King, and only kinglings are the rest who dwell beside Sarasvatī. He, like Parjanya with his rain, hath spread himself with thousand, yea, with myriad gifts.
—Rigveda:book8:hymnXXI.18
source:— http://www.sacred-texts.com/hin/rigveda/rv08021.htm
"Brahman said, 'O highly blessed one, excellent is the duty that thou hast enunciated, together with its secret ritual. Praise be to thee! I grant thee this boon, viz., that thy penances will continually increase!' "Yams said, 'I have heard from thee an excellent and agreeable discourse. Listen now to what Chitragupta has said and what is agreeable to me. Those words relate to duty with its secret ritual, and are worthy of being heard by the great Rishis, as also by men endued with faith and desirous of achieving their own good. Nothing is lost of either piety or sin that is committed by creatures. On days of the full moon and the new moon, those acts are conveyed to the sun where they rest. When a mortal goes into the region of the dead, the deity of the sun bears witness to all his acts. He that is righteous acquires the fruits of his righteousness there. I shall now tell you of some auspicious duties that are approved by Chitragupta. Water for drink, and lamps for lighting darkness, should always be given, as also sandals and umbrellas and Kapila kine with due rites. In Pushkara especially should one make the gift of a Kapila cow unto a Brahmana conversant with the Vedas. One should also always maintain one's Agnihotra with great care. Here is another duty which was proclaimed by Chitragupta.