Passage 2.26.6
λέγεται δὲ καὶ ἄλλος ἐπʼ αὐτῷ λόγος, Κορωνίδα κύουσαν Ἀσκληπιὸν Ἴσχυι τῷ Ἐλάτου συγγενέσθαι, καὶ τὴν μὲν ἀποθανεῖν ὑπὸ Ἀρτέμιδος ἀμυνομένης τῆς ἐς τὸν Ἀπόλλωνα ὕβρεως, ἐξημμένης δὲ ἤδη τῆς πυρᾶς ἁρπάσαι λέγεται τὸν παῖδα Ἑρμῆς ἀπὸ τῆς φλογός.
Another account is also told of him, that Coronis, while pregnant with Asclepius, had intercourse with Ischys, the son of Elatus; and Artemis, avenging this affront against Apollo, killed the woman. But it is said that when the pyre had already been lit, Hermes snatched the child from the flames.