Yusuf Ali
The Day that the sky will be like molten brass,

Sahih International
On the Day the sky will be like murky oil,

Shakir
On the day when the heaven shall be as molten copper

Pickthall
The day when the sky will become as molten copper,

محمد جالندھری
جس دن آسمان ایسا ہو جائے گا جیسے پگھلا ہوا تانبا