Musannaf Ibn Abi Shayba 3:3534

Hushaym narrated to us, from Mughira, from Ibrahim, regarding the one who experiences vomiting, a nosebleed, or kissing: He departs and performs ablution. If he has not spoken, he continues from what remains [of his prayer]. If he has spoken, he restarts [the prayer]. And he used to say regarding the one who experiences defecation or urination: He departs, performs ablution, and restarts the prayer.