(Recall) when their brother Salih said to them (by way of timely warning): "Will you not keep from disobedience to God in reverence for Him and seek refuge with His protection
Their brother Salih said to them, “Do you not fear and beware?”
Al-muntakhab fi tafsir al-Qur'an al-Karim
Their brother Saleh said to them: "Will you not listen to exhortation and keep in awe of Allah, your Creator, and entertain the profound reverence dutiful to Him"