Hadith 5:67
Abu Bakr narrated to us, he said: Waki’ narrated to us, from Sufyan, from Abu Ishaq, from ‘Asim ibn Damrah, from ‘Ali, he said: There is nothing [due as Zakat] in less than two hundred dirhams. As for what is more than that, it is by calculation.
حدثنا أبو بكر قال ثنا وكيع عن سفيان عن أبي إسحاق عن عاصم بن ضمرة عن علي قال ليس في أقل من مائتي درهم شيء فما زاد فبالحساب