AAaynan feeha tusamma salsabeela (surah Insan: 18)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(76:18) drawn from a spring (in Paradise) called Salsabil. *20

Aynan feeha tusammaa salsabeelaa

*20) This is to suit the taste of the Arabs who liked the wine flavoured with ginger-mixed water. But this flavouring will not be achieved by adding ginger-mixed water to it: it will be a natural fountain which will have the flavour of ginger but without its bitterness; Therefore, it will be called Salsabil, which implies such water as flows gently and pleasantly down the throat on account of its being sweet, light and platable. Most commentators think that the word salsabil has been used here as an adjective of the fountain and not as a name for it.