By: Aishah Ahmed
“[Of these stories mention] When Joseph said to his father, “O my father, indeed I have seen [in a dream] eleven stars and the sun and the moon; I saw them prostrating to me. He said, “O my son, do not relate your vision to your brothers or they will contrive against you a plan. Indeed Satan, to man, is a manifest enemy.” [Surah Yusuf, 12: 4,5]
Ibn Katheer in his explanation of this ayah says, “….Ya`qub feared that if Yusuf narrated his vision to any of his brothers, they wouldenvy him and conspire evil plots against him.” 
Yes, brothers and sisters in Islam, the evil eye is true. The Prophet said:
“The evil eye is real, and if anything were to overtake the divine decree (al-qadar) it would be the evil eye.” 
This is a trait that Allah mentions in the Qur’an and our Prophet has warned us about:
‘The disease of previous nations has crawled its way to you: envy and hatred.’ 
What is Evil Eye?
The Arabic word al-‘ayn (translated as the evil eye) refers to when a person harms another with his eye.  Its counterpart is hasad(jealousy), which is the hoping in the removal of the blessing from the one who is envied.
Simply put, when one sees his brother blessed with what Allah has given him, he hopes that his blessing disappears from him for no reason except for his envy towards him.
The reality of evil-eye:
I would like to know how Muslims can differentiate between calamities that are caused by an evil eye, and others that are not related to that. Can we cure the person who has been harmed by an evil eye without knowing who gave him the evil eye?
All perfect praise be to Allaah, the Lord of the worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad , is His Slave and Messenger.
In order to differentiate between calamities that result from an evil eye and others, we should know the symptoms of the effect of an evil eye. Usually, an evil eye causes symptoms that can not be treated by doctors, such as joints diseases, laziness, insomnia, ulcers that appear on the skin and aversion to home, school, family and society. In addition, there may be some psychological and neurological diseases. Envied people are usually pale, angry, having ailments, prone to depression, sighing and forgetfulness and feel heavy headed and feel that their shoulders are heavy. They also feel that their limbs are stinging, their bodies are hot and their limbs are cold.
‘Abd Al-Khaaliq Al-‘Attaar said that an evil eye could affect a person’s wealth, body, and children, according to the object to which the evil eye is directed. If the person himself got the evil eye, he would be afflicted with psychological symptoms such as detesting school, college, work and study and would become less intelligent. Moreover, he may become introverted and prefer to live away from his family. He may also feel that even his most beloved people do not love him.
Introduction of Evil Eye
The evil eye is the name for a sickness or misfortune transmitted, usually with or without intention, by someone who is envious, jealous, and covetous or even a pious person from among man or jinn. MashAllah, it could affect children, adults, livestock, and any kind of materialistic items, and the most vulnerable are the very young, the wealthy and the beautiful. To cast out an evil eye its not necessary to see the victim, the evil-eye can be transmitted even just by visualizing or imagining or even with a very limited description of the target person for example a person can cast-out an evil eye even on himself just by imagining or while look at himself in the mirror or even a blind person can cast out an evil eye just by visualizing the target person or a mother could herself un- intentionally cast out a evil eye on her child..etc.
Our Prophet[SAW] has therefore advised us to recite ‘MashaAllah’, to prevent the casting-out an evil eye, therefore one should say ‘MashaAllah’ when praising or looking at anyone or any thing with excitement, in-order to avoid casting an evil eye to them.
Evil Eye in Quran and Hadith
“..And from the evil of the envier when he envieth.”[Quran Surah Al Falaq 113]
Prophet(SA) said: “The evil eye is real, and if anything were to overtake the divine decree (al-qadar) it would be the evil eye.” [Muslim]
Symptoms of Evil Eye
Primary symptoms of evil eye are feelings of physical and/or emotional tiredness, unexplained bad luck or un-favorable incidences and illness. It is thought to cause drowsiness, drooping eyelids, listlessness, fatigue, weariness, lack of concentration, restlessness, discomfort, cramps, convulsions, headaches, hiccoughs, clumsiness, stomachaches, dry coughs, diarrhea, itching, hair loss, dry skin vomiting, the drying up of the milk of nursing mothers and livestock, problems with the blood and eyesight, impairment of sexual activity, impotence, sterility, disorders in menstruation, problems in pregnancy and childbirth, deficient breast milk, mastitis, and among babies and young children, incessant crying and fretting, a baby’s refusal to suckle or drink milk and other symptoms include lack of rain, the drying up of wells, the withering of fruit, sudden loss to business, and so on.