What is the Sharia ruling on ejaculating manually, and how can one abandon and repent from this habit? Did the Messenger of Allah, peace and blessings be upon him, permit the Companions to do this act, along with mentioning the evidence and the characteristics that help in abandoning it?

The majority of scholars have adduced evidence for the prohibition of masturbation from the Quran and from the harm it causes. No authentic hadith has been reported from the Prophet, peace and blessings be upon him, specifically prohibiting it. Information on preventive measures can be found in Fatwa no. 32543.