Habeel and Qabeel both are the sons of Sayyiduna Adam عَـلَيْـهِ الـسَّـلاَم. It is narrated that the first murderer on the earth is Qabeel and the first person who was murdered is Habeel. The incident of both is as follows: One baby boy and one baby girl used to be born with every pregnancy of Sayyidatuna Hawa رَضِیَ اللهُ تَعَالٰی عَنْهَا. The boy of one pregnancy used to be married with the girl of the other pregnancy. According to this common practice, Sayyiduna Adam عَـلَيْـهِ الـسَّـلاَم wanted to perform the Nikah of the girl named Akleema, who was born with Qabeel, with his another son Habeel, but Qabeel did not agree to it because Aqleema was more beautiful and  hence he wanted her. Sayyiduna Adam عَـلَيْـهِ الـسَّـلاَم made him understand a lot by saying that Aqleema was born with him and that’s why she was her sister and he could not do Nikah with her, but he did not listen to him. Finally, Sayyiduna Adam عَـلَيْـهِ الـسَّـلاَم ordered: Both of you present your sacrifices in the court of Allah عَزَّوَجَلَّ. The one whose sacrifice is accepted will deserve Aqleema. In that age, the sign of the sacrifice being accepted was that a fire would come from the sky and eat the sacrifice that would be accepted in the court of Allah عَزَّوَجَلَّ. Qabeel presented some ears of wheat and Sayyiduna Habeel رَضِىَ اللهُ تَعَالٰی عَـنْهُ presented a goat for sacrifice. Fire from the sky ate the sacrifice of Sayyiduna Habeel رَضِىَ اللهُ تَعَالٰی عَـنْهُ and left the wheat of Qabeel. Due to this Qabeel developed malice and jealousy and decided to kill Sayyiduna Habeel رَضِىَ اللهُ تَعَالٰی عَـنْهُ and said to Habeel: I will kill you. It is Allah Almighty’s Will to accept the sacrifice, replied Sayyiduna Habeel رَضِىَ اللهُ تَعَالٰی عَـنْهُ and He عَزَّوَجَلَّ accepts the sacrifice of those who are pious and sincere. If you had been pious, your sacrifice must have been accepted. (Aja’ib-ul-Quran Ma’ Ghara’ib-ul-Quran, pp. 85-86, Siraat-ul-Jinnan, vol. 2, pp. 416, Taht-al-Ayah 27)

Dear Islamic brothers! Qabeel was instigated by worldly love, malice and jealousy to murder his brother and he murdered his brother. Today even in our society, a brother feels jealous of his brother by seeing his scholarly competence, excellent mental ability, plenty of wealth, respect and nobility, excellent job and his dignity and due to this jealousy he tries to harm his own brother and makes Du’as that these blessings be taken back from him. Remember! Feeling jealous is Haraam and an act leading to Hell.