Back to the beginning: the default ruling in acts of worship is prohibition unless there is an explicit text.

The Shaykh : This very narration is what we take as proof for the scholarly principle held by the scholars of the Muslims, and specifically as explained by Shaykh al-Islam Ibn Taymiyyah (may Allah have mercy on him): "The default ruling in acts of worship is prohibition unless there is an explicit text, and the default ruling in customary matters is permissibility unless there is an explicit text." And so it is. Then I say, and may Allah bless you all, my brothers: if the most devout person in the Islamic Shari'ah, in which Allah completed the favor upon the Muslims by perfecting their religion, the most devout person according to the text of the Messenger of Allah (peace be upon him), was Dawud (peace be upon him), he would not have been able to perform all the acts of worship that came in Islam because of their multitude. Even if he performed most of them, and not all of them, who would be the most devout person after Dawud? Such a person does not exist. Therefore, perhaps you remember with me that there is a report, which may be narrated as a hadith but is not authentic: "Whenever the people innovate a religious innovation, they abandon a similar amount of the Sunnah." This is a very tangible matter that we touch with our hands in the lives of these Muslims who have strayed from the Sunnah of the Messenger (peace be upon him). If these acts of worship are varied in form and circumstances, and so on, the most devout person cannot perform them all; rather, each person does so according to his capacity and desire for worship, and so on. So if we come to these people with all these new matters, new acts of worship, without a doubt we will expand the circle of worship more than the Lawgiver expanded it when He said: We say that no one can encompass all these acts of worship, so what about when second acts of worship come? They will distract these people from a portion of these acts of worship that are prescribed by explicit text, meaning acts of worship that are prescribed, at best, by independent legal reasoning. No, let us stick to the acts of worship prescribed by explicit text, and we can barely manage a good portion of them. As for all of them, as you know, the Messenger of Allah (peace and blessings be upon him) was, as came from Anas ibn Malik and others, fasting and fasting until we thought, what? He does not break his fast? And breaking his fast and breaking his fast until we thought he does not fast. Why? My brother, he had responsibilities, he had the administration of a state, expanding the territory of the Islamic world, and so on. Therefore, every person takes from this divine table that Allah revealed upon the heart of Muhammad (peace be upon him) according to his capacity, according to his capacity, not all of it, for this is not possible. And therefore, this whole must be preserved; so-and-so takes some, and the second and third, and so on. As for us adding to it additions from ourselves, to the extent of this addition, we will lose from the worship that was legislated. And this is what we actually see, touching it with our hands, among the ignorant and the heedless, may Allah guide us and them all. He says to you: "My brother, what is the harm in it?" May Allah guide you, my brother, you realize the consequence of innovating a religious innovation. What is the harm in it? Nevertheless, we touch them, what is the harm in it, with our hands. One of the worshippers leaves the prayer and meets his companion, "May Allah accept it," where is The salam has fallen, what took its place? The innovation. He enters upon his companion who is in the ablution area performing wudu, "Muzammam," "Haram," where is "As-salamu alaykum"?