Muhajir bin Abi Umayyah said: Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) wrote to me: Send Qays bin Makshuh to me in bonds, so that I may make him swear 50 oaths near the minbar of the Prophet (peace and blessings be upon him) that he did not kill Dadhawayh.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 20694