Casting evil glances is clearly forbidden by the clear and explicit text of the Qur'aan. Allah Ta'ala says: “O Nabi Tell the believing men to lower some of their gazes." (Sura Nur ; Ayat 30, Juz 18) (Meaning, do not look at ghair mahram women and handsome boys). Therefore, he who casts evil glances is opposing the clear and explicit command of Qur'aan, and one who opposes the clear and explicit command of Qur'aan is guilty of committing a HARAAM act. Thus, to save oneself from this sin, it is sufficient to meditate upon the fact that the one who casts evil glances is opposing a commandment of the Qur’aan. In other words, he is disobeying Allah

Arif Billah Hazrat Maulana Hakeem Muhammed Akhtar Saheb RA

The Shaykh is the doctor who removes the cataract from the eyes of the spiritual heart, after which the Saalik is blessed with baseerat (spiritual sight) and Ma`rifat of Allah [swt] Ta’ala. And naturally, having recognized the Beloved, the goal is achieved.

By Hazrat Maulana Abdul Hamid Ishaq DB

An Action of Stupidity Hazrat Hakeem ul Ummnat Thanwi said: "Every sin is a sign of stupidity and foolishness. Anyone who commits sin, then this is a sign that there is some deficiency in his intellect. He is disobeying such a Being in whose hands is our life and death, our health and sickness, peace and comfort, good and evil end. If his intellect was sound he would never commit sin. As for the one who casts evil glances, Hazrat says that he is extremely foolish. By casting glances, he attains nothing other than restlessness in his heart. By looking at a beauty, one never attains him/her, rather one gets uneasiness and the heart becomes restless when one remembers him/her. Allah Ta'ala has granted me a new aspect of knowledge. To cause inconvenience to any Muslim or to bother him in any way is HARAAM. Now that person who is casting evil glances, is he not a Muslim? Is he not causing pain to himself and making his own heart restless? Therefore, the same way it is forbidden to cause pain and harm to any Muslim, it is likewise forbidden to cause pain to one's own heart by making it restless and uneasy.

Arif Billah Hazrat Maulana Hakeem Muhammed Akhtar Saheb RA

The true Mashaa`ik do not promote and advertise themselves, nor do they canvass for Mureedeen. They do not chase after name and fame. They do not hanker after Dunya. They wish to remain concealed, but Allah Ta’ala sometimes chooses for them to be known