Sahih Muslim Book - 5, Hadith - 1256

وَحَدَّثَنِى عَمْرٌو النَّاقِدُ حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ عَنِ الْجُرَيْرِىِّ عَنْ أَبِى نَضْرَةَ عَنْ أَبِى سَعِيدٍ قَالَ لَمْ نَعْدُ أَنْ فُتِحَتْ خَيْبَرُ فَوَقَعْنَا أَصْحَابَ رَسُولِ اللَّهِ -صلى الله عليه وسلم- فِى تِلْكَ الْبَقْلَةِ الثُّومِ وَالنَّاسُ جِيَاعٌ فَأَكَلْنَا مِنْهَا أَكْلاً شَدِيدًا ثُمَّ رُحْنَا إِلَى الْمَسْجِدِ فَوَجَدَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- الرِّيحَ فَقَالَ « مَنْ أَكَلَ مِنْ هَذِهِ الشَّجَرَةِ الْخَبِيثَةِ شَيْئًا فَلاَ يَقْرَبَنَّا فِى الْمَسْجِدِ ». فَقَالَ النَّاسُ حُرِّمَتْ حُرِّمَتْ. فَبَلَغَ ذَاكَ النَّبِىَّ -صلى الله عليه وسلم- فَقَالَ « أَيُّهَا النَّاسُ إِنَّهُ لَيْسَ بِى تَحْرِيمُ مَا أَحَلَّ اللَّهُ لِى وَلَكِنَّهَا شَجَرَةٌ أَكْرَهُ رِيحَهَا ».

It was narrated that Abu Sa'eed said: "As soon as Khaibar was conquered, we found ourselves (the Companions of the Messenger of Allah (s.a.w)) indulging in eating that vegetable" - meaning garlic - "as the people were hungry. We ate a great deal of it, then we went to the Masjid, and the Messenger of Allah (s.a.w) noticed the smell. He said: 'Whoever eats anything from this offensive plant, let him not come near our Masjid.' The people said: 'It has been forbidden, it has been forbidden.' News of that reached the Prophet (s.a.w) and he said: 'O people, I cannot forbid something that Allah has made permissible for me, but it is a plant whose smell I dislike.'"