The Prophet (salallāhu ‘alaihi wasallam) said:
إِنَّ أَوَّلَ مَا يُحَاسَبُ النَّاسُ بِهِ يَوْمَ
الْقِيَامَةِ مِنْ أَعْمَالِهِمُ الصَّلاَةُ قَالَ يَقُولُ رَبُّنَا جَلَّ وَعَزَّ
لِمَلاَئِكَتِهِ وَهُوَ
أَعْلَمُ انْظُرُوا فِي صَلاَةِ عَبْدِي أَتَمَّهَا
أَمْ نَقَصَهَا فَإِنْ كَانَتْ تَامَّةً كُتِبَتْ لَهُ تَامَّةً وَإِنْ كَانَ
انْتَقَصَ مِنْهَا
شَيْئًا قَالَ انْظُرُوا هَلْ لِعَبْدِي مِنْ
تَطَوُّعٍ فَإِنْ كَانَ لَهُ تَطَوُّعٌ قَالَ أَتِمُّوا لِعَبْدِي فَرِيضَتَهُ
مِنْ تَطَوُّعِهِ ثُمَّ
تُؤْخَذُ الأَعْمَالُ عَلَى ذَاكُمْ
“The first matter that the people will be called to account for on the Day of Judgement from their deeds will be the Prayer. Our Lord, the Exalted, will say to the angels, though He knows better: ‘Look into the prayer of My servant and see whether he has offered it perfectly or deficiently.’ If it is perfect, it will be recorded as perfect. If it is deficient, He will say: ‘See if there are some optional prayers offered by My servant.’ If he has optional prayers, Allah will say: ‘Compensate the obligatory Prayers with the optional Prayers for My servant.’ Then all the actions will be accounted similarly.”
(Reported by Abu Dawood, no. 846––graded saheeh by Al-Albāni)
Selected from: https://abukhadeejah.com/abandoning-the-prayer-is-from-the-most-dangerous-of-sins-imam-adh-dhahabi/