5. Abu Ali al-Ash’ari has narrated from Muhammad ibn Salim from Ahmad ibn al- Nadr from ‘Amr ibn Shimr from Jabir from abu Ja’far who has said the following: “Whoever testifies to the disbelief of a man will turn to one of them (one of them becomes an unbeliever). If one testifies to the disbelief of an unbeliever, he is right and if the party is a believer it turns to the testifier. You must never revile a believer.”