The garlic and onions were mentioned before the Messenger of Allah (ﷺ). He was told: The most severe of them is garlic. Would you make it unlawful? The Prophet (ﷺ) said: Eat it, and he who eats it should not come near this mosque until its odour goes away.
Sunan Abi Dawud Book 28, Hadith 88
← Previous Hadith He who eats garlic or onion must keep away from us. Or he said: must keep away from our mosque or must sit in his house. A dish containing green vegetables was brought to him, and noticing that it had an odour he asked (about it). He was told that it contained some vegetables. He then said: Bring it near, to one of his companion who was with him. When he saw it, he abominated eating it, and said: eat for I hold intimate converse with one with whom you do not. Ahmad b. Salih said: Ibn Wahb explained the word badr as meaning dish.

Sunan Abi Dawud Book 28, Hadith 87 Next Hadith → Zirr ibn Hubaysh said: Hudhayfah traced, I think, to the Messenger of Allah (ﷺ) the saying: He who spits in the direction of the qiblah will come on the Day of Resurrection in the state that his saliva will be between his eyes; and he who eats from this noxious vegetable should not come near our mosque, saying it three times.

Sunan Abi Dawud Book 28, Hadith 89