(Swaffaath) 37 : 46
بَيْضَاءَ لَذَّةٍ لِلشَّارِبِينَ

White, delicious to the drinkers.

“A cup from a flowing stream” includes a drink from the stream named Salsabeel, as mentioned in verses 76: 15-18, and a drink from the river of liquor, as mentioned in verse 47: 15.