[rootoronpunty]

Abu ‘Ubayd said in Kitaab al-Ghareeb:
Abu Mu’aawiyah told us, from Abu ‘Aasim al-Qaffi, from al-Shu’bi from ‘Abd-Allaah ibn Mas’ood, who said:
“A man from among the humans went out and was met by a man from among the jinn, who said, ‘Will you wrestle with me? If you throw me to the ground I will teach you an aayah which, if you recite it when you enter your house, no shaytaan will enter.’
So he wrestled with him and threw him to the ground. He said, ‘I see that you are very small and your forearms are like the front paws of a dog. Are all the jinn like this, or only you?’
He said, ‘I am strong among them. Let us wrestle again.’
So they wrestled again and the human threw him to the ground. So he (the jinn) said, ‘Recite Aayat al-Kursiy, for no one recites it when he enters his house, but the Shaytaan leaves, farting like a donkey.’”
It was said to Ibn Mas’ood, “Was that man ‘Umar?” He said, “Who else could it have been, other than ‘Umar?”