In the case of encountering any evil, it is highly recommended to recite chapters Al-Falaq and An-Nass. It is narrated that the Prophet (sawas) sought refuge in the Creator of mankind with these two chapters to protect Imam Hassan and Imam Hussain (as).
One is inclined to ask the following:
1- How can anyone seek refuge in anything to dispel negative energy, evil, the acrimonious, the vicious, and the jealous individuals?
2- How can God be All-Merciful and these two chapters of His Quran be not?
3- How can one seek refuge in Him without tools, neglecting His effective and powerful Words, i.e. these two surahs of the Qur’an?
4- Is there anything spiritually more effective and powerful than the Qur’an?
To start answering the last question, one may say that Muslims believe that the Qur’an is –spiritually- the most powerful text. To answer the third question, it is clear that one should seek refuge in Him, albeit with tools that He has prescribed for it. One of those recommended tools is the Qur’an. It states in one of its verses, the following:
‘And We send down of the Qur’an that which is healing and mercy for the believers, but it does not increase the wrongdoers except in loss.’ Holy Qur’an, C. 17: V. 82
With regards to the second and the first questions, one believes that the whole Qur’an is the perfect manifestation of the divine Mercy. However some of its verses can be referring to being hard and tough against the oppressors and dictators. These two chapters are perfect examples as how to seek refuge in Him. These two holy surahs contain profound meanings and excellent spiritual guidelines that must be taken into consideration when carefully reading them, as much as the Qur’anic verses have emphasized them. From one angle, one should remember that seeking refuge in the Almighty should be accompanied by good deeds and excellent moral behaviors. One cannot invoke the Lord saying, “O God, I seek refuge in you, but contrary to Your commandment, I’d love to indulge myself in backbiting and gossip,” or by saying, “Contrary to Your command, I get extremely irate and angry enough to kill someone or to cheat and lie.” How can one stand up to pray to His Lord while ignoring His mystical presence and hardly remembering Him? As such one understands that seeking refuge in Him, necessitates that one must adhere to His commands, in order to be protected.
Al-Mizan Commentary on Surahs al-Falaq and an-Nass
Surat al-Falaq:
قُلْ أَعُوذُ بِرَبِّ الْفَلَقِ (1 ( Say[O, Messenger!]:” I seek refuge in the Creator of the Dawn! )
I seek refuge in the Lord, who has the power to break the day from the night, so He can ward off evil, too.
مِنْ شَرِّ ما خَلَقَ (2 (“From the evil of all creatures)
وَ مِنْ شَرِّ غاسِقٍ إِذا وَقَبَ (3 (“And from the evil of the darkness of the night when it overtakes all things;)
Here, three evils are specifically mentioned. The reason is clear: these are the three evils that work secretly, and the human being is unaware of how to keep him/herself away from it. The first evil is the night (O, God I seek refuge in You from the evil of the darkness of the night!). That is because most acrimonious acts usually occur under the darkness of the night.
وَ مِنْ شَرِّ النَّفَّاثاتِ فِي الْعُقَدِ (4 (“And from the evil of the sorceresses, who blow spells in the knots;)
Here, one seeks refuge in the Lord from the second evil, which is that of the sorceresses. The phrase means both female and male sorceresses, but it is expressed in the feminine form, because this was more common among women during the time of the revelation.
وَ مِنْ شَرِّ حاسِدٍ إِذا حَسَدَ (5 (“And from the evil of the jealous when jealousy is overwhelming.”)
The third evil is the jealous individual. The Quran states: “I seek refuge in the Lord, from the jealousy and its destructive and insidious effects.”
Surat An-Nass
قُلْ أَعُوذُ بِرَبِّ النَّاسِ (1 مَلِكِ النَّاسِ (2 إِلهِ النَّاسِ (3 (Say [O, Messenger]: “I seek refuge in the Creator of mankind,” the King of mankind, the God of mankind,”
I seek refuge in the Lord! Here the verses speak about three divine attributes, which are mainly related to the Almighty Lord. 1) So, I seek refuge in the God, who is the tutor! Here, the attribute of tutor means the manager and mentor, the very kind God who wants to train and increase human beings’ awareness and spiritual development. 2) The second attribute is God, who possesses omnipotent power and overwhelming authority, and has a decisive ruling, so that whoever can escape from any evil he can by using his power and monarchy, such as kings. 3) And the third, is that it is God who is the only genuine and absolute true God, where all, each, and every one surrenders to His authority and needs Him.
مِنْ شَرِّ الْوَسْواسِ الْخَنَّاسِ (4 “From the evil of the temptations of Satan:
Temptation is the trait of Satan. That is, to hide after having insinuated …. In a sense, some have said that Satan causes temptation and constantly seduces man into committing evil. As soon as man fails to remember God, or when one ignores the remembrance of God, one fails against temptation.
الَّذي يُوَسْوِسُ في صُدُورِ النَّاسِ (5 “The one who whispers into the hearts of the people)
The heart is indeed the devil’s temptation place, because everyone’s decision making is somehow associated with the heart, which means, in this context, the mind!
مِنَ الْجِنَّةِ وَ النَّاسِ (6 “Whether he be from among the Jinns or among mankind.”
One should seek refuge from each and every evil, be it caused by [Jinns] evil entities or ghosts, and/or by people who have been changed -sadly- into devilish individuals, have become Satanic, or have the perfect manifestation of the devil.