Rulings on Intention: Its Obligatoriness and Its Place

Question:
This questioner, Abu Ibrahīm, asks: Regarding the intention, is it required in all acts of worship, or only in specific, designated ones? What is the ruling on verbalizing it? And which are the acts of worship in which we verbalize the intention? In the name of Allah, the Most Gracious, the Most Merciful. All praise is due to Allah, Lord of the worlds, and may Allah send prayers and blessings upon our Prophet Muhammad, and upon his family and all his Companions.

Answer:
The intention is a condition for the validity of all acts of worship. The Messenger of Allah (peace and blessings be upon him) said: Therefore, no act of worship is valid except with intention and purpose. Its place is the heart, and it is not verbalized with the tongue, because this is something the Messenger of Allah (peace and blessings be upon him) did not do, and there is no request in the Book or the Sunnah to verbalize the intention, because Allah knows it from your heart without you verbalizing it. Do you know that Allah knows your religion? Allah knows what is in the heavens and what is on the earth; Allah is All-Knowing of everything. It is sufficient for you to intend with your heart, to purpose with your heart, to purpose the act of worship you want, whether it is prayer or otherwise. Also, you must make it sincere for Allah (Mighty and Majestic), making the intention for this act of worship for Allah alone, so that there is no showing off or seeking fame in it, nor any intention of seeking worldly gain, but rather it is for the face of Allah (Mighty and Majestic). Yes.