whomsoever allah desires to guide he expands his chest to islam . whomsoever he desires to lead astray he makes his chest narrow tight as though he were climbing to heaven. as such allah lays the scourge on the unbelievers.
فمن يرد الله أن يهديه يشرح صدره للإسلام ومن يرد أن يضله يجعل صدره ضيقا حرجا كأنما يصعد في السماء كذلك يجعل الله الرجس على الذين لا يؤمنون