What is the punishment for being negligent in prayer?

Question:
This is a question about prayer. One of the brothers asks: If a person abandons prayer out of negligence and laziness, or if he prays it at home, or if he prays the four obligatory prayers and leaves off the Fajr prayer, or if he prays one obligatory prayer and leaves off another, or if he prays two and is late for some of them, or if he prays them according to his free time from work and according to his mood, we ask for advice or a ruling on this matter?

Answer:
Abandoning prayer is a great evil, indeed it is open disbelief, even if he abandons some of it and performs some of it. The Prophet (peace and blessings be upon him) said: Abandoning it is disbelief. And he (peace and blessings be upon him) said: Between a man and disbelief and shirk (associating partners with Allah) is the abandonment of prayer. When he was asked about the rulers who are established over them or who they rebel against, he forbade fighting them, saying: Except if you see open disbelief. And in the other text he said: Except if they do not establish prayer among you. This indicates that not establishing prayer is open disbelief. As for the one who prays at home and prays with the congregation, he is a sinner, not a disbeliever. Praying at home, he may be a sinner resembling the people of hypocrisy, but he is not a disbeliever. He is not to be punished or disciplined until he prays with the congregation in the mosques of Allah. And if he prays some and leaves off some, he is also a disbeliever. If he prays the Zuhr and 'Asr and prays the Maghrib and 'Isha', or if he prays the Zuhr, 'Asr, and Maghrib and leaves off the Fajr, he is a disbeliever, we seek refuge in Allah, until he prays them all. Or if he prays only the Jumu'ah and prays the whole week, he is a disbeliever, we seek refuge in Allah, meaning according to the correct opinion. In the words of some scholars, if he does not deny its obligation, some scholars say he is not a disbeliever, but he is a great sinner, greater and more established in sin than the fornicator and the thief, but he is not a disbeliever if he does not deny its obligation. However, if he denies its obligation, he is a disbeliever by consensus. But the correct opinion of the scholars is that he is a disbeliever with major disbelief even if he does not deny its obligation, as long as he abandons it out of arrogance. We ask Allah for guidance and well-being for everyone, and there is no power and no strength except with Allah.