Al-Insaan • BN-TAFSEER-IBN-E-KASEER
﴿ قَوَارِيرَا۟ مِن فِضَّةٍۢ قَدَّرُوهَا تَقْدِيرًۭا ﴾
“crystal-like, [but] of silver - the measure whereof they alone will determine.”
Please check ayah 76:22 for complete tafsir.