Musannaf Ibn Abi Shaybah

Hazrat Usman says that nothing breaks the prayer except talking or losing ablution.

Hazrat Sha’bah says that I asked Hazrat Hakam and Hazrat Hammad: If a person speaks during prayer, what is the ruling? They replied: If he spoke after completing the prayer while he was making some addition, then his prayer is valid and he should perform sajdah sahw (prostration of forgetfulness). But if he spoke before completing the prayer, then he must repeat the prayer.

Hasan says that he will repeat the prayer.

Ibrahim says that if a person speaks during the prayer, he will have to repeat the prayer, but there is no need to perform ablution again.