As-Saaffaat • AR-TAFSIR-IBN-KATHIR
﴿ إِذْ قَالَ لِقَوْمِهِۦٓ أَلَا تَتَّقُونَ ﴾
“when he spoke [thus] to his people: “Will you not remain conscious of God?”
أي ألا تخافون الله عز وجل فى عبادتكم غيره.