Rashnu

Rashnu is the Avestan language name of the Zoroastrian yazata of justice. Together with Mithra and Sraosha, Rashnu is one of the three judges who pass judgment on the souls of people after death. Rashnu's standard appellation is "the very straight."In the Bundahishn, a Zoroastrian account of creation finished in the 11th or 12th century, Rashnu (Middle Persian: Rashn) is identified as an assistant of the Amesha Spenta Ameretat (Amurdad), "immortality". (GBd xxvi.115). In a subsequent passage, Rashnu is described as the essence of truth (arta/asha) that prevents the daevas from destroying material Creation. "Rashnu adjudges even the souls of men as to sins and good deeds. As one says, 'Rashnu shall not see thither the rank of the judge who delivers false judgment.'" (GBd xxvi.116-117).
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[Persian] The Persian divine angel of justice and last judgement and the personification of righteousness. Along with Mithra and Sraosa he judges the souls of the dead. Rashnu guards the Chinvat bridge leading to heaven. He carries the golden scales with which he weighs the souls at Judgement. Rashnu is one of the Yazatas.