Musannaf Ibn Abi Shaybah

Ayub Abu Al-Ala reports that Hazrat Abu Hashim, regarding those four people who testified to adultery against a man and then one of them retracted, said: In this case, a quarter of the blood money (diyat) will be obligatory upon him. And Hazrat Ibn Sirin said: If he says, "I made a mistake and intended someone else besides him," then blood money will be obligatory upon him. And if he says, "I deliberately intended to kill him," then in that case, he will be killed in retribution (qisas) in exchange for him.