The meaning of the saying of the Exalted: "Woe to the praying [who] are heedless of their prayer," and clarification of the ruling on the one who abandons prayer.

The Shaykh : Then He, the Exalted, said: I do not need to interpret "Woe" for you, because we have interpreted it in Surat al-Humazah. What did we say there? "Woe" is a word of warning. Who is it for whom there is woe? For the praying? Not every one who prays has woe for him; rather, the one who truly prays has good for him. But the one who prays while being heedless of his prayer, it is he for whom there is woe. May Allah protect me and you from that. Now, meaning they are negligent and careless, not caring when they stand up during the day to pray, whether they pray with the congregation or without the congregation, they are heedless of it. And when they enter into it, whispers and distractions come to them from every direction. This is not a true worshipper; his prayer is a body without a soul, his prayer is a body without a soul. For this reason, the Prophet (peace and blessings be upon him) forbade a man to pray in the presence of food, because his heart would be preoccupied with what? With the food, so he would be negligent of the prayer. So the praying who are heedless of their prayer, these are the ones for whom there is woe. And what about the one who never prays? Answer, O you jurists? It is even more so.
If the one who prays while being heedless has woe for him, then the one who never prays is more severe and more severe. For this reason, the most correct of the scholars' opinions is that the one who does not pray is a disbeliever, a disbeliever who has exited Islam, having nothing to do with the Muslims. And if he dies, it is not permissible to wash him, shroud him, pray over him, bury him with the Muslims, or supplicate for him with mercy or forgiveness, because what is he? A disbeliever. For this reason, it is not permissible for anyone who knows that a relative of his has died while not praying to present him to the Muslims so they pray over him. So what is done with him? He is treated as the scholars who said that the one who abandons prayer is a disbeliever, which is the truth, have said: he is taken out to the open land, to a desolate place, and a pit is dug for him, not a grave, but a pit, and he is thrown into it in his clothes, thrown in. And on the Day of Resurrection, he will be gathered with whom? With Pharaoh, Haman, Qarun, and Abu Jahl. May Allah protect us and you from that. So prayer is a matter of great seriousness, its affair is immense.
Meaning they are negligent, careless of it, and lax in it.