Hazrat Ibn Abi Layla narrates that Hazrat Shabi said: In Yemen, a man was found dead between two settlements, so Hazrat Umar said: Consider which of the two settlements he is closer to. Then, have fifty people from that settlement swear by Allah that they did not kill him, nor do they know who the killer is. Then, the blood money will be obligatory upon them.

Hazrat Muammar narrates that Imam Zuhri was asked about a person in such a situation. The owner of the house said: "Indeed, he came to me at night to steal my wealth, so I killed him." But the family of the slain said: "Indeed, this person had invited him to his house and then killed him." Upon this, Imam Zuhri said: "If fifty people from the family of the slain swear that the owner of the house invited him and then killed him, I will exact retribution (qisas) from him. But if they refuse to swear, then they will be responsible for paying blood money (diyah)." Imam Zuhri said: "Hazrat Ibn Affan also gave the same verdict regarding the slain of Banu Baqarah. When his heirs refused to swear, Hazrat Uthman made them responsible for paying the blood money."

29639 - (Al-Zuhri said): Ibn ‘Affan judged concerning a slain man from Banu (Baqirah); his heirs refused to swear, so ‘Uthman obliged them to pay the blood money.

Yunus narrates that Hasan Basri said regarding a person killed deceitfully: Fifty men from among the defendants will each swear fifty oaths that neither did we kill nor do we know the killer. If they take the oaths, they will be acquitted. But if they refuse to take the oaths, then fifty men from among the claimants will swear that our blood was shed by you, then the blood money will be paid.

Hazrat Hisham states that his father, Hazrat Urwah, said regarding Qasamah that it has been continuously practiced both in the era of ignorance and in Islam.

Hazrat Basheer bin Yasar, an Ansari man whose name was Sahl bin Abu Hathma, narrates that a group from his tribe went towards Khaybar. When they reached there, they dispersed, and then they found one of their companions dead. They said to those with whom they found him dead, "You have killed our companion." They replied, "We did not kill him, nor do we know who the killer is." Then these people came to the Prophet of Allah (peace and blessings be upon him) and said, "O Prophet of Allah! We went to Khaybar and there we found one of our companions dead." The Messenger of Allah (peace and blessings be upon him) said, "Call the chief, call the chief." Then he (peace and blessings be upon him) said to them, "Bring witnesses against the one who killed him." They said, "We have no witnesses." The Prophet (peace and blessings be upon him) said, "Then the Jews will swear an oath for you." They said, "We are not satisfied with the oath of the Jews." So the Prophet of Allah disliked letting his blood go in vain, and he (peace and blessings be upon him) paid his blood money—one hundred camels—from the camels of charity.