It has been narrated that 'Umar (May Allah be pleased with him) said in the sermon of Friday prayer:
"O you people! You eat garlic and onion. I think the odour of these to be very offensive. I saw that if the Messenger of Allah ﷺ happened to find a man with such offensive odour in the mosque, he would order him to be taken out of the mosque and sent to Al-Baqi'. He who wants to eat any of these, should cook them till their odour dies out.

[Muslim].

وعن عمر بن الخطاب رضي الله عنه أنه خطب يوم الجمعة فقال في خطبته: ثم إنكم أيها الناس تأكلون شجرتين ما أراهما إلا خبيثتين: البصل، والثوم -لقد رأيت رسول الله ﷺ إذا وجد ريحهما من الرجل في المسجد أمر به، فأخرج إلى البقيع، فمن أكلهما، فليمتهما طبخًا. ((رواه مسلم)).