It was narrated from Ma’dan bin Abu Talhah Al-Ya’muri that ‘Umar bin Khattab stood up one Friday delivering a sermon. He praised and glorified Allah, then he said:
“O people, you eat two plants which I do not regard as anything but offensive: This garlic and these onions. At the time of the Messenger of Allah ﷺ, I would see a man, if the smell (of these vegetables) was found on him, being taken by the hand and led out to Baqi’ (graveyard). Whoever must eat them, let him cook them to death.”

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، عَنْ سَعِيدِ بْنِ أَبِي عَرُوبَةَ، عَنْ قَتَادَةَ، عَنْ سَالِمِ بْنِ أَبِي الْجَعْدِ الْغَطَفَانِيِّ، عَنْ مَعْدَانَ بْنِ أَبِي طَلْحَةَ الْيَعْمُرِيِّ، أَنَّ عُمَرَ بْنَ الْخَطَّابِ، قَامَ يَوْمَ الْجُمُعَةِ خَطِيبًا فَحَمِدَ اللَّهَ وَأَثْنَى عَلَيْهِ ثُمَّ قَالَ يَا أَيُّهَا النَّاسُ إِنَّكُمْ تَأْكُلُونَ شَجَرَتَيْنِ لاَ أُرَاهُمَا إِلاَّ خَبِيثَتَيْنِ هَذَا الثُّومُ وَهَذَا الْبَصَلُ وَلَقَدْ كُنْتُ أَرَى الرَّجُلَ عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ يُوجَدُ رِيحُهُ مِنْهُ فَيُؤْخَذُ بِيَدِهِ حَتَّى يُخْرَجَ بِهِ إِلَى الْبَقِيعِ فَمَنْ كَانَ آكِلَهُمَا لاَ بُدَّ فَلْيُمِتْهُمَا طَبْخًا .