Surah An NAhl: verses 68 and 69,
"And thy Lord inspired the bee, saying: Choose thou habitations in the hills and in the trees and in that which they thatch; Then eat of all fruits, and follow the ways of thy LORD, made smooth (for thee). There cometh forth from their bellies a drink diverse of hues, wherein is a healing for mankind. Lo! herein is indeed a portent for people who reflect."