Aayatul Kursi – A Protection from Shaytaan

عن عبد الله بن مسعود رضي الله عنه قال : لقي رجل من أصحاب النبي صلى الله عليه و سلم رجلا من الجن فصارعه فصرعه الانسي فقال له الجني : عاودني فعادوه فصرعه فقال له الانسي : إني لأراك ضئيلا شحيبا كأن ذريعتك ذريعتا كلب فكذلك انتم معشر الجن أو أنت منهم كذلك ؟ قال : لا والله إني منهم لضليع ولكن عاودني الثالثة فإن صرعتني علمتك شيئا ينفعك فعاوده فصرعه قال : هات علمني قال : هل تقرأ آية الكرسي ؟ قال : نعم قال : إنك لن تقرأها في بيت إلا خرج منه الشيطان له خبج كخبج الحمار لا يدخله حتى يصبح قال رجل من القوم : يا أبا عبد الرحمن من ذاك الرجل من أصحاب محمد صلى الله عليه و سلم ؟(و في رواية  فقيل لابن مسعود: أهو عمر؟) قال : فعبس عبد الله وأقبل عليه وقال : من يكون هو إلا عمر رضي الله عنه (المعجم الكبير رقم 8826)

Hadhrat Abdullah bin Mas’ood (Radhiyallahu Anhu) narrates: "A Sahaabi once met a person from the jinn species. He challenged the Sahaabi to a wrestling match. After commencing the wrestle, the Sahaabi defeated the jinn. The jinn then challenged him again, and the Sahaabi overpowered him for the second time. The Sahaabi then told the jinn: “I see that you are weak and thin and your forearms are like the forelegs of a dog. Are all the jinn like this, or only you?” He (the jinn) replied: “No by the qasm of Allah Ta’ala, I am a strong individual amongst them. Let us wrestle again for the third time. If you defeat me, I will teach you something that will benefit you.” They thus wrestled once more and this time also the Sahaabi triumphed. Thereupon the Sahaabi told the jinn: “Now (as per your promise) you will have to teach me.” So the jinn asked him:”Do you recite Aayatul Kursi?” The Sahaabi replied in the affirmitive. The jinn then continued saying: “(Recite Aayatul Kursi), for no one recites it in his home except that Shaytaan leaves, passing wind like a donkey, and he will not enter again until the next morning.” 

One of the students of Hadhrat Abdullah ibn Mas‘ood (Radhiyallahu Anhu) asked him: “Who was that Sahaabi who wrestled with the jinn, was it Hadhrat Umar (Radhiallahu Anhu)?” Hadhrat Abdullah ibn Mas‘ood (Radhiyallahu Anhu) replied: “Besides Hadhrat ‘Umar (Radhiyallahu Anhu), who else could it have been? (i.e. certainly, it was Hadhrat Umar (Radhiyallahu Anhu). ”