It was narrated from Ma’dan bin Abi Talhah that ‘Umar bin Al !c! said: “people, you eat of two plants which I do not think are anything but bad, this onion and garlic. I have seen the Prophet of Allah صلی اللہ علیہ وآلہ وسلم if he noticed their smell coming from a man, ordering that he be taken out to Al-Baqi’. Whoever eats them, let him cook them to death.” (Sahih)