Riyad-us-Saliheen 1703
Jabir (May Allah be pleased with him) said: The Prophet (PBUH) said, "He who has eaten garlic or onion should keep away from us or our mosques."
[Al-Bukhari and Muslim]
The narration in Muslim is: "He who has eaten onion or garlic or leek should not approach our mosque, because the angels are also offended by the strong smells) that offend the children of Adam."