[All]: Heiðrekr’s response is (Heiðr 1960, 44): Þat er þá, er Óðinn ríðr Sleipni ‘That is when Óðinn rides Sleipnir’. The H redaction is more elaborate (Heiðr 1924, 82): margs freistar þú nú, er þú finnr þau rǫk til framburðar við mik, er forðum váru; þat er þá er Óðinn reið hestinum Sleipni; hann hafði átta fœtr, en Óðinn tvá, en þeir hǫfðu þrjú augu, Sleipnir tvau en Óðinn eitt ‘You are really making a game of it now, when you find in your deliveries to me those wonders which happened in ancient times; that is when Óðinn rode the horse Sleipnir; he had eight feet, and Óðinn two, and they had three eyes, Sleipnir two and Óðinn one’. The story of Sleipnir’s conception and birth is related in Gylf (see SnE 2005, 34-5), as is the story of Óðinn exchanging an eye for a drink from Mímir’s well, the well of knowledge (see SnE 2005, 17), for which Snorri quotes Vsp 28/7-14.