Abu Qasim ﷺ said, "Whoever points a piece of iron at his brother, the angels curse him, even if it be his brother from his father and mother."
قال أبو القاسم ﷺ: من أشار إلى أخيه بحديدة فإن الملائكة تلعنه حتى وإن كان أخاه لأبيه وأمه.
Muslim narrated it in the Book of Righteousness and Ties of Kinship (2616) through several routes from Sufyan bin Uyayna, from Ayub, from Ibn Sirin, who said, "I heard Abu Hurairah say," and he related the hadith.