26. My father said: Sa`d ibn `Abd Allah on the authority of Ya`qub ibn Yazid, on the authority of Muhammad ibn Abu `Umayr, on the authority of Muhammad ibn Humran that Abu `Abd Allah al-Sadiq said, “Whoever sincerely says: `there is no god but Allah,’ will enter Heaven. If the person is sincere, the profession `there is no god but Allah’ will refrain him from whatever Allah, the Mighty and High, has forbidden.”