(17) باب نَهْىِ مَنْ أَكَلَ ثُومًا أَوْ بَصَلاً أَوْ كُرَّاثًا أَوْ نَحْوَهَا عَنْ حُضُورِ الْمَسْجِدِ
Abu Sa'id reported:
We made no transgression but Khaybar was conquered. We, the Companions of the Messenger of Allah (ﷺ), fell upon this plant. i e. garlic. because the people were hungry. We ate it to our heart's content and then made our way towards the mosque. The Messenger of Allah (ﷺ) sensed its odour and he said: He who takes anything of this offensive plant must not approach us in the mosque. The people said: Its (use) has been forbidden; its (use) bu been forbidden. This reached the Messenger of Allah (ﷺ) and he said: O people, I cannot forbid (the use of a thing) which Allah has made lawful, but (this garlic) is a plant the odour of which is repugnant to me.
Reference: Sahih Muslim 565
In-book reference: Book 5, Hadith 94
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1149