Is he who follows a clear sign from his Lord…?He said:The believer has a clear explanation (bayān) from his Lord and whoever has a clear proof (bayyina) from his Lord adheres to following the established ways of the Prophet (sunan).His words, Exalted is He: Know, then, that there is no god but God…He said:All people are dead except those who know (ʿulamāʾ), and for this reason He summoned His Prophet to the abode of life (maḥall al-ḥayāt), through knowledge (ʿilm), with His words: Know…His words: