﴿ عَيْنًۭا فِيهَا تُسَمَّىٰ سَلْسَبِيلًۭا ﴾

“[derived from] a source [to be found] therein, whose name is "Seek Thy Way".”

a spring ‘aynan substitutes for zanjabīlan ‘ginger’ therein named Salsabīl meaning that its water is like ginger which the Arabs find very tasteful and which is very palatable for the throat.