Was the Hadith: "Indeed, Allah has cursed the fornicator with his own hands... and that the fornicator will come on the Day of Resurrection with his hands carrying..." narrated from the Noble Messenger, and what is the punishment for the fornicator with his own hands?

The answer regarding the two aforementioned hadiths has preceded. As for the punishment for practicing masturbation, there is no specific prescribed punishment for it in Islamic law. Some scholars have mentioned that its perpetrator may be subject to ta'zir (discretionary punishment).