Masturbation = Health Hazards
There are a number of confirmed health hazards that could arise as a result of masturbation. From them: the dispersion of the mind, as it will attempt to recall sexual interactions prior to masturbating, and this leads in the long-term a weakening of the memory. Also, (for the male), the hand is relatively rougher than the vagina, masturbating leads, in the long term, to a weakening of the sensitivity of the male penis. This is a disease widespread amongst Westerners – may Allah protect us from it – where men leave their women, as he is unable to ejaculate during sex with her, and is sufficed with ejaculating by his hand (masturbating), with the aid of pornography. As for the woman, then it leads to an enlargement of the external sexual organs (clitoris and outer labia), and thinness of the vagina, which results in a lack of sexual enjoyment when penetrated by her husband. This is why oral sex is very common amongst Westerners. Likewise, the ease of masturbating compared to sex (as it doesn’t require another person), encourages continuation of doing it, until one becomes addicted. It results in a sense of lowness and sinning. It is also against morals and a scar on manliness
Marriage: The Solution To Get Rid of Masturbation:
as-Sunnah an-Nabawiyyah: They used as evidence, the hadeeth collected by al-Bukhaari [5/1950] and Muslim [2/1018] in their Saheehay from ‘Abdullah bin Mas’ood, radiallahu ‘anh, who said: “We were with some youth not finding anything, so the Messenger of Allah, sallallahu ‘alayhi wa salam said: ‘O assembly of youth. Whoever from you is able to get married, then let him do so, for it lowers the gaze and protects the privates. And whoever is unable, then it is (on him) to fast, for it is a protection (from committing the haraam).’”
So, masturbation is a sin.
Qur'an Ch 24-Light, V 33
“And let those who find not the financial means for marriage keep themselves chaste, until Allah enriches them of His Bounty” [24:33].