Is it true that Allah will not look upon a person on the Day of Resurrection, and that person will be cursed, as a result of inserting a hand into the anus during masturbation?

Masturbation is forbidden in Islamic law based on other evidence. However, no authentic hadith has been reported that curses its perpetrator or considers them among those whom Allah will not look at. We hope that you will not fall under these two threats. Similarly, inserting a finger or anything else into the anus is forbidden. Therefore, its perpetrator must repent to Allah for that.