Hadith Narrated By Abdur Rahman bin Al-Aswad

from his father that he heard Abdullah say: "The Prophet (saw) wanted to defecate, and he told me to bring him three stones. I found two stones and looked for a third, but I could not find any, so I picked up a piece of dung and brought them to the Prophet (saw). He took the two stones and threw away the dung and said: "This is Riks." (Sahih) Abu Abdur-Rahman (An-Nasa'i) said: Riks is the food of the jinn.