Ali ibn Ibrahim has narrated from his father from Yahya ibn al-Mubarak from ‘Abdallah ibn Jubla from ibn Ishaq ibn ‘Ammar from abu ‘Abdallah (a.s) who has said the following. 
"I asked Imam abu ‘Abdallah (a.s) this, ‘May Allah take my soul in service for your cause, I have a neighbor who prays a great deal, gives much charity and very often visits Makka and he seems alright.’" The Imam (a.s) asked, "O ibn Ishaq how is his intelligence?" I then said, "May Allah take my soul in service for your cause, he does not have any intelligence" "Nothing from what he does will be raised up (to heavens)." Replied the Imam.