The Quran does not extensively discuss skin in a biological or physical sense. However, it mentions skin in the context of punishment for disbelievers in the afterlife, and in discussions regarding racial equality.
Skin in the Context of Divine Punishment
Several verses, notably 4:56, describe the punishment of disbelievers in hellfire. These verses mention the continuous burning and replacement of their skin: "As often as their skins are consumed We shall exchange them for fresh skins that they may taste the torment" (Yusuf Ali translation of 4:56). This imagery is used to emphasize the unending nature of the punishment, not to provide a literal description of skin's physiological properties. Multiple translations and interpretations of this verse exist, all conveying the intensity of divine retribution rather than detailing skin's physical characteristics. Quran.com, Corpus Quran, and QuranReflect offer varying translations reflecting this interpretation.
Skin Color and Equality
The Quran emphasizes equality among people, irrespective of their skin color or other physical attributes. There is no verse directly addressing skin color as a basis for superiority or inferiority. While some verses mention "white" and "black" faces (e.g., 3:106, 39:60), these are symbolic representations of piety and righteousness, not literal descriptions of skin pigmentation. Yasir Qadhi's Facebook post and Quora discussion highlight the interpretations and misconceptions surrounding these verses. Furthermore, Quranic Resources explicitly points out that the Quran instructs against discrimination based on skin color.
Skin in Narratives of Prophetic Traditions
Some hadith (sayings and traditions of the Prophet Muhammad) mention instances of physical harm resulting in skin injuries. However, these are historical accounts of specific events, and not systematic teachings on the nature of skin itself. Examples include discussions about injuries sustained from beatings, as highlighted in a Reddit post. It's crucial to distinguish these anecdotal accounts from direct Quranic teachings.