Mention (Hud) one of 'Ad's (own) brethren: Behold, he warned his people about the winding Sand-tracts: but there have been warners before him and after him: "Worship ye none other than Allah: Truly I fear for you the Penalty of a Mighty Day." (21)
Tafsir
The people of ‘Ad once inhabited that area of southern Arabia which is now known as ar-Rub al-Khali. They made considerable progress, but their development pushed them into arrogance and neglectfulness. Then Almighty God made Hud, a member of that community, a prophet, and sent him to them. Hud warned his community of God’s displeasure but, unwilling to be reformed, it received its prophet with rudeness. Ultimately, God’s wrath descended upon it and it received such a severe punishment that its glorious and lush green surroundings turned into a totally arid desert.
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