(Al-Muaminoon) 23 : 20
وَشَجَرَةً تَخْرُجُ مِنْ طُورِ سَيْنَاءَ تَنْبُتُ بِالدُّهْنِ وَصِبْغٍ لِلْآكِلِينَ
And a tree springing with oil from Mount Sinai and has a relish for those who eat.
The tree mentioned in the verse is Olive. See explanation 6: 141; 13: 4 and 24: 35.