All perfect praise be to Allaah, the Lord of the worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.
"If a large amount of a substance intoxicates, a small amount of it is prohibited" is a Prophetic Hadeeth which was narrated by Abu Daawood in his Sunan; and by At-Tirmithi, Ahmad, Ibn Hibbaan on the authority of Jaabir .
It was also narrated by Ahmad ; by An-Nasa'ee ; and by Ibn Maajah on the authority of ‘Abd-Allaah ibn ‘Amr . Shaykh Al-Albaani verified it.
This Hadeeth is considered Saheeh (authentic).
And Allaah Knows best.