Ar-Rahmaan • BN-TAFSEER-IBN-E-KASEER
﴿ فَإِذَا ٱنشَقَّتِ ٱلسَّمَآءُ فَكَانَتْ وَرْدَةًۭ كَٱلدِّهَانِ ﴾
“And when the sky is rent asunder and becomes red like [burning] oil”
Please check ayah 55:45 for complete tafsir.