بُنِيَ الإِسْلاَمُ عَلَى خَمْسٍ شَهَادَةِ أَنْ لاَ إِلَهَ إِلاَّ اللَّهُ وَأَنَّ مُحَمَّدًا رَسُولُ اللَّهِ، وَإِقَامِ الصَّلاَةِ، وَإِيتَاءِ الزَّكَاةِ، وَالْحَجِّ، وَصَوْمِ رَمَضَانَ
Islam is built on five: bearing witness that there is no god but Allah and that Muhammad is the Messenger of Allah, establishing the prayer, giving zakat, Hajj, and fasting in Ramadan.
إِنَّ بَيْنَ الرَّجُلِ وَبَيْنَ الشِّرْكِ وَالْكُفْرِ تَرْكَ الصَّلاَةِ
Between a man and shirk and disbelief stands the abandoning of the prayer.
الْعَهْدُ الَّذِي بَيْنَنَا وَبَيْنَهُمُ الصَّلاَةُ فَمَنْ تَرَكَهَا فَقَدْ كَفَرَ
The covenant between us and them is the prayer, so whoever abandons it has disbelieved.
What this means for someone who misses prayers out of laziness is explained in the guide below, school by school.
إِنَّ أَوَّلَ مَا يُحَاسَبُ بِهِ الْعَبْدُ يَوْمَ الْقِيَامَةِ مِنْ عَمَلِهِ صَلاَتُهُ فَإِنْ صَلُحَتْ فَقَدْ أَفْلَحَ وَأَنْجَحَ وَإِنْ فَسَدَتْ فَقَدْ خَابَ وَخَسِرَ فَإِنِ انْتَقَصَ مِنْ فَرِيضَتِهِ شَيْءٌ قَالَ الرَّبُّ عَزَّ وَجَلَّ انْظُرُوا هَلْ لِعَبْدِي مِنْ تَطَوُّعٍ فَيُكَمَّلَ بِهَا مَا انْتَقَصَ مِنَ الْفَرِيضَةِ ثُمَّ يَكُونُ سَائِرُ عَمَلِهِ عَلَى ذَلِكَ
The first of a servant's deeds he will be called to account for on the Day of Resurrection is his prayer. If it is sound, he has succeeded and prospered. If it is spoiled, he has failed and lost. If anything is lacking from his obligatory prayers, the Lord, Mighty and Majestic, will say: Look and see whether My servant has any voluntary prayer, so that what is lacking from the obligatory may be made up with it. Then the rest of his deeds will be treated in the same way.
أَرَأَيْتُمْ لَوْ أَنَّ نَهَرًا بِبَابِ أَحَدِكُمْ، يَغْتَسِلُ فِيهِ كُلَّ يَوْمٍ خَمْسًا، مَا تَقُولُ ذَلِكَ يُبْقِي مِنْ دَرَنِهِ ... فَذَلِكَ مِثْلُ الصَّلَوَاتِ الْخَمْسِ، يَمْحُو اللَّهُ بِهَا الْخَطَايَا
Tell me, if there were a river at the door of one of you and he bathed in it five times every day, would any of his dirt remain? (They said: none of his dirt would remain.) That is the likeness of the five prayers: through them Allah wipes away sins.
الصَّلاَةُ الْخَمْسُ وَالْجُمُعَةُ إِلَى الْجُمُعَةِ كَفَّارَةٌ لِمَا بَيْنَهُنَّ مَا لَمْ تُغْشَ الْكَبَائِرُ
The five prayers, and from one Jumu'ah to the next, are an expiation for what comes between them, as long as major sins are not committed.
الصَّلاَةُ عَلَى وَقْتِهَا ... ثُمَّ بِرُّ الْوَالِدَيْنِ ... الْجِهَادُ فِي سَبِيلِ اللَّهِ
I asked the Prophet ﷺ which deed is most beloved to Allah. He said: The prayer at its proper time. I asked: Then what? He said: Then being good to parents. I asked: Then what? He said: Striving in the path of Allah.
صَلاَةُ الْجَمَاعَةِ تَفْضُلُ صَلاَةَ الْفَذِّ بِسَبْعٍ وَعِشْرِينَ دَرَجَةً
Prayer in congregation is better than prayer alone by twenty-seven degrees.
أَقْرَبُ مَا يَكُونُ الْعَبْدُ مِنْ رَبِّهِ وَهُوَ سَاجِدٌ فَأَكْثِرُوا الدُّعَاءَ
The closest a servant comes to his Lord is when he is in prostration, so make plenty of dua then.
مَنْ صَلَّى الصُّبْحَ فَهُوَ فِي ذِمَّةِ اللَّهِ فَلاَ يَطْلُبَنَّكُمُ اللَّهُ مِنْ ذِمَّتِهِ بِشَىْءٍ فَيُدْرِكَهُ فَيَكُبَّهُ فِي نَارِ جَهَنَّمَ
Whoever prays the morning prayer is under the protection of Allah. So let Allah not call you to account for anything against His protection, for whoever He calls to account for that, He will seize and throw into the Fire of Hell.
The scholars explain it two ways, and both are meant: do not harm a person who is under Allah's protection, and do not let yourself miss Fajr and lose that protection.
مَنْ صَلَّى الْبَرْدَيْنِ دَخَلَ الْجَنَّةَ
Whoever prays the two cool prayers will enter Paradise.
The two cool prayers are Fajr and Asr, prayed in the cool of the early morning and the late afternoon.
يَا بِلاَلُ أَقِمِ الصَّلاَةَ أَرِحْنَا بِهَا
O Bilal, call the iqamah for the prayer: give us rest through it.
صَلُّوا كَمَا رَأَيْتُمُونِي أُصَلِّي
Pray as you have seen me praying.