The Holy Quran 76:16 — Surah Al-Insan
Arabic text
قَوَارِيرَا۟ مِن فِضَّةٍ قَدَّرُوهَا تَقْدِيرًا
Translation
...such crystal that is of silver (unlike anything of this world), (which those serving will fill) with an appropriate measure (drink will neither be too little that the person will wish he had more, nor will it be too much that he would have to force himself to finish it).
Tafsir (excerpt) — Tafsir Usmani
The vessels of Paradise: that is, the cups will in essence be made of silver — perfectly white, spotless and gladdening — but in their clearness, transparency and brilliance they will look like glass: what is inside them will be clearly visible from outside.
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