The Book of Mosques and Places of Prayer
5/17. Chapter:
Prohibiting one who has eaten garlic, onions, or leeks, and other things that have an offensive odor from coming to the masjid, until that smell has gone away, and such a person should be expelled from the masjid
Sahih Muslim
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا ابْنُ نُمَيْرٍ، ح قَالَ وَحَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، - وَاللَّفْظُ لَهُ - حَدَّثَنَا أَبِي قَالَ، حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَنْ أَكَلَ مِنْ هَذِهِ الْبَقْلَةِ فَلاَ يَقْرَبَنَّ مَسَاجِدَنَا حَتَّى يَذْهَبَ رِيحُهَا " . يَعْنِي الثُّومَ .
Ibn 'Umar reported: The Messenger of Allah (ﷺ) said: He who eats of this (offensive) plant must not approach our mosque, till its odor dies: (plant signifies) garlic.
Reference : Sahih Muslim 561bIn-book reference : Book 5, Hadith 87USC-MSA web (English) reference : Book 4, Hadith 1142