Uthman (R.A.) reported that Prophet Mohammad (S.A.W.) has said that (nothing will harm) the servant who recites these words three times every morning and evening.
بِسْمِ اللَّهِ الَّذِي لَا يَضُرُّ مَعَ اسْمِهِ شَيْءٌ فِي الْأَرْضِ وَلَا فِي السَّمَاءِ وَهُوَ السَّمِيعُ الْعَلِيمُ
We have made (started) the morning (and night) in whose Name nothing in the skies and the earth can harm and He is the All-hearing, the All-knowing.
(Tirmidhi)
It is narrated by Abu Dawood that if one recites this dua in the morning, no unforeseen calamity will come to him.
(Miskhat)
Prophet Mohammad (S.A.W.) said that if a person recites three ayats of Surah Rum (Para 21) and if he misses his normal recitation of the day, he will still be rewarded for it. This applies to the night as well.
فَسُبْحَانَ اللَّهِ حِينَ تُمْسُونَ وَحِينَ تُصْبِحُونَ * وَلَهُ الْحَمْدُ فِي السَّمَاوَاتِ وَالْأَرْضِ وَعَشِيًّا وَحِينَ تُظْهِرُونَ * يُخْرِجُ الْحَيَّ مِنَ الْمَيِّتِ وَيُخْرِجُ الْمَيِّتَ مِنَ الْحَيِّ وَيُحْيِي الْأَرْضَ بَعْدَ مَوْتِهَا وَكَذَلِكَ تُخْرَجُونَ
"So remember Allah in the evening and the morning. To him is the praise in the Heavens and the Earth and in the last hours and when it is noon. He brings forth the living from the dead and the dead from the living and He revives the earth after it is dead. And even so you shall be brought forth".
Abu Huraira (R.A) narrated that Prophet Mohammad (S.A.W.) said that whosoever reads the beginning of Surah Mo'min (para 24) and Ayatul-Qursi in the morning, then he will be protected from calamaties and ploys till the evening and whosoever recites these in the evenings, will be protected from calamities and ploys till the morning.
حم * تَنزِيلُ الْكِتَابِ مِنَ اللَّهِ الْعَزِيزِ الْعَلِيمِ * غَافِرِ الذَّنبِ وَقَابِلِ التَّوْبِ شَدِيدِ الْعِقَابِ ذِي الطَّوْلِ لَا إِلَهَ إِلَّا هُوَ إِلَيْهِ الْمَصِيرُ
"Ha. Meem, The sending down of this book is from Allah who is the All-Mighty, the All-Knowing, The Forgiver of sins and the Acceptor of repentance, Severe in retribution, Bountiful there is no ilah but He, Unto Him is our return".
اللَّهُ لاَ إِلَـهَ إِلاَّ هُوَ الْحَيُّ الْقَيُّومُ لاَ تَأْخُذُهُ سِنَةٌ وَلاَ نَوْمٌ لَّهُ مَا فِي السَّمَاوَاتِ وَمَا فِي الْأَرْضِ مَن ذَا الَّذِي يَشْفَعُ عِندَهُ إِلاَّ بِإِذْنِهِ يَعْلَمُ مَا بَيْنَ أَيْدِيهِمْ وَمَا خَلْفَهُمْ وَلاَ يُحِيطُونَ بِشَيْءٍ مِّنْ عِلْمِهِ إِلاَّ بِمَا شَاءَ وَسِعَ كُرْسِيُّهُ السَّمَاوَاتِ وَالْأَرْضَ وَلاَ يَئُودُهُ حِفْظُهُمَا وَهُوَ الْعَلِيُّ الْعَظِيمُ
Allah! There is no ilah (deity worthy of worship) but He The Living, The Eternal One. Neither slumber, nor sleep overtakes Him. To Him belonges whatever is in the Heavens and on the earth. Who is he that can intercede with Him but by His permission? He knows what is before and what is behind them. They encompass nothing of His knowledge which He will. His Throne extends over the Heavens and the Earth, and the preservation of both does not weary Him. He is the Exalted The Immense One.
(Qur'an 2:255)
Prophet Mohammad (S.A.W.) stated that a person who has recited (the underlying) in the morning, he has pleased (praised, glorified) Allah for His favours of the morning, and if he has done so in the night, he has thanked Allah for His favours of the night.
(Abu Dawood, Nisai)
اللَّهُمَّ مَا أَصْبَحَ بِي مِنْ نِعْمَةٍ أَوْ بِأَحَدٍ مِنْ خَلْقِكَ فَمِنْكَ وَحْدَكَ لَا شَرِيكَ لَكَ فَلَكَ الْحَمْدُ وَلَكَ الشُّكْرُ
Translation: "O Allah, whatever favours You have bestowed upon me and all other creations is only from you. You are One, You have no partners. Praise and Shukr (thanks) be to You".
If recited in the night, then recite مَا أمَْسيَ in place of مَا أَصْبَحَ بِي
Thuban (R.A.) narrated that Rasulullah (Sallallahu alaihi wasallam) stated that if a Muslim servant recites (the underlying) three times every morning, then it becomes the responsibility of Allah to satisfy him on the Day of Qiyamah.
رَضِيتُ بِاللَّهِ رَبَّاً وَبِالْإِسْلَامِ دِينَاً وَبِمُحَمَّدٍ نَبِيَّاً
Translation: I am pleased with Allah as my Lord, Islam as my Deen and Muhammad (SAW) as my Nabi.
(Tirmidhi)
Muagal bin Yasaar (R.A.) narrates that Prophet Mohammad (S.A.W.) has stated that a person who recites three times
أَعُوذُ بِاللَّهِ السَّمِيعِ الْعَلِيمِ مِنَ الشَّيْطَانِ الرَّجِيمِ
in the morning the last three ayats of Suratul Hashr then Allah delegates 70,000 angles to send mercy onto him till the evening and if he dies that day, he will die as a martyr and if he recites these in the evening then Allah delegates 70,000 angels to send mercy onto him till the morning and if he dies that night, he dies as martyr.
(Tirmidhi)
هُوَ اللَّهُ الَّذِي لاَ إِلَهَ إِلاَّ هُوَ عَالِمُ الْغَيْبِ وَالشَّهَادَةِ هُوَ الرَّحْمَنُ الرَّحِيمُ * هُوَ اللَّهُ الَّذِي لاَ إِلَهَ إِلاَّ هُوَ الْمَلِكُ الْقُدُّوسُ السَّلامُ الْمُؤْمِنُ الْمُهَيْمِنُ الْعَزِيزُ الْجَبَّارُ الْمُتَكَبِّرُ سُبْحَانَ اللَّهِ عَمَّا يُشْرِكُونَ * هُوَ اللَّهُ الْخَالِقُ الْبَارِئُ الْمُصَوِّرُ لَهُ الْأَسْمَاءُ الْحُسْنَى يُسَبِّحُ لَهُ مَا فِي السَّمَاوَاتِ وَالْأَرْضِ وَهُوَ الْعَزِيزُ الْحَكِيمُ *
"He is Allah, there is no ilah but He, He is the knower of the unseen and the witness He is the All-Merciful, the All compassionate. He is Allah, there is no ilah but He. He is the king, the Holy, the Giver of Safety. The Taker-in shelter the All-Mighty, the omnipotent, the All-Sublime. Allah is Pure and Pure of what they associate (with Him). He is Allah, the Creator, the One who is Perfect. To Him belong names Most Excellent. All that is in the heavens and the earth, glorify Him and He is the All-Mighty, the All-Wise".
Ataa bin Abi Rahaa (R.A.) narrates that Prophet Mohammad (S.A.W.) has stated that if a person recites Surah Yaseen early in the morning then his need for the day will be fullfilled.
(Mishkat)
Benefit: The recitation of Surah Ikhlaas, Surah Falaq and Surah Naas three times each in the mornings and evenings, has been encouraged in the Ahadith.
(Hisn-ulHasin)