12. My father said: Sa`d ibn `Abd Allah said: Ahmad ibn Muhammad ibn `Isa said, on the authority `Abd Allah ibn al-Mughayrah, on the authority of Abu al-Yas`, on the authority of Sulayman ibn Khalid that Abu `Abd Allah al-Sadiq said: Verily, there was a group of people before you cast aside the knowledge they were granted, and sought knowledge that was not granted to them. Hence, they did not stop questioning until they asked about what was above Heaven. As a result, they went astray. Among them was a man who, when called from the front, would answer from behind, and when was called from behind he would answer from the front.