"(It is) a spring from which the servants of Allah will drink, gushing it forth abundantly" (76:6), meaning: it flows for them in a spring just as they desire.
﴿عَيْنًا يَشْرَبُ بِهَا عِبَادُ اللَّهِ يفجرونها تفجيرا﴾ أَيْ: تَجْرِي لَهُمْ بِعَيْنٍ كَمَا أَحبُّوا
