Corpus of Electronic Texts Edition
The Wooing of Emer by Cú Chulainn (Author: [unknown])

paragraph 70

On the third day the maiden advised Cuchulaind, that if it was to achieve valour that he had come, he should go through the hero's salmon-leap at Scathach, where she was teaching her two sons, Cuar and Cett, in the great yew tree, when she was there; that he should then set his sword between her two breasts until she gave him his three wishes, viz., to teach him without neglect, and that he might wed her (Uathach) without the payment of the wedding gift, and to tell him what would befall him; for she was a prophetess.