﴿ إِذْ قَالَ لَهُمْ شُعَيْبٌ أَلَا تَتَّقُونَ ﴾

“when their brother Shu’ayb said unto them: “Will you not be conscious of God?”

when Shu‘ayb — He God does not say ‘their brother’ in this instance because he Shu‘ayb was not in terms of lineage one of them — said to them ‘Will you not fear God?