Sunan al-Nasa'i
"Qasamah existed during the Jahiliyyah, then the Messenger of Allah confirmed it in the case of an Ansari who was found slain in the dry well of the jews, and Ansar said: "The Jews kill our companion."'
The Book of Oaths (qasamah), Retaliation and Blood Money
164 hadith in this topic
Sunan al-Nasa'i
'Abdullah bin Sahl and Muhayysah set out for Khaibar because of some problem that had arisen. Someone came to Muhayysah and he told him that 'Abdullah bin Sahl had been Killed and thrown into a pit, or a well. He...
Sunan al-Nasa'i
"The first instance of Qasamah during the Jahiliyyah involved a man from Banu Hashim who was employed by a man from Quraish, from another branch of the tribe. He went out with him, driving his camels and another man from...
Sunan al-Nasa'i
the Messenger or Allah approved of Qasamah as it had been during the Jahiliyyah.