Narrated Abdullah bin Mas'ud (may Allah be pleased with him): The Messenger of Allah (peace and blessings of Allah be upon him) said: Whenever a person is killed unjustly, a sin for that killing is also written in the record of Adam's (peace be upon him) first son (Qabil), because he was the first to establish the practice of unlawful killing.
Hadith Referenceاللؤلؤ والمرجان / كتاب القسامة / 1092
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في: 60 كتاب الأنبياء: 1 باب خَلْق آدم صلوات الله عليه وذريته»