I heard Saeed bin Jubayr and Mujahid narrating from Ibn Abbas concerning the unmarried person caught committing the act of the people of Lut. He said, "He is to be stoned."
حدثنا إسحق بن إبراهيم بن راهويه حدثنا عبد الرزاق أخبرنا ابن جريج
سمعت سعيد بن جبير ومجاهدا يحدثان عن ابن عباس في البكر يؤخذ على اللوطية قال يرجم
No references are available.
[Its isnad is hasan]. Bayhaqi (8/22) narrated it from the hadith of Abu Dawud through the same route.The hadith of Asim will come at number 4465.