Hisham bin Urwah (may Allah have mercy on him) said that there was a dispute between a man from the family of Hatib bin Abi Balta'ah (may Allah be pleased with him) and a man from the family of Suhayb (may Allah be pleased with him); then he narrated the account of his killing. He said: Yahya bin Abd al-Rahman bin Hatib (may Allah have mercy on him) rode to Abd al-Malik bin Marwan about it, and he gave judgement by qasamah, that 6 men of the family of Hatib should swear, repeating the oaths over them. The family of Hatib wanted to swear against two men and kill them both, but Abd al-Malik refused unless they swore against one and killed him. So they swore against the Suhaybi, and he was killed. Hisham said: Urwah did not object to that and held that the truth had been reached in it.
This has been narrated to us from al-Zuhri and Rabi'ah, and it is mentioned from Ibn Abi Mulaykah that Umar bin Abd al-Aziz and Ibn al-Zubayr carried out retaliation by qasamah. It is also mentioned from Umar bin Abd al-Aziz that he retracted that and said: If his people find evidence (then so be it); otherwise people must not be wronged, for this is something that will only be judged on the Day of Resurrection.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب القسامة / 16460