It is narrated from Hazrat Malik bin Dinar that he said: The person who himself had seen Amir bin Abd Qais informed me that he (Amir) asked for olive oil, then poured it into his hand and rubbed one hand over the other, then recited this verse of the Holy Qur'an: { وَشَجَرَۃً تَخْرُجُ مِنْ طُورِ سَیْنَائَ تَنْبُتُ بِالدُّہْنِ وَصِبْغٍ لِلآکِلِینَ }. The narrator says that then he applied the oil to his head and beard.