Kitāb al-Ghayba > Reports of the Emissaries of Imam (a.s) during the period of occultation
Hadith #2

294- وقد روي في بعض الاخبار أنهم عليهم السلام قالوا: خدامنا وقوامنا شرار خلق الله.

H 294 - It is narrated in some reports that they said: “Our servants and our caretakers are the most evil of Allah’s creation.”