An unnamed narrator narrates from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him), from the Prophet (peace and blessings be upon him), that he (peace and blessings be upon him) said: "There is nothing (no zakah) on the awqas."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17491