Praise be to Allah, the Lord of the worlds! Peace and blessings to our prophet Muhammad, his family, and all the companions.
Before us is the message "Three foundations", which is concise, but at the same time important. This message is supported by evidence from the Book of Allah and the Sunnah of His Messenger, sallallaahu 'alaihi wa sallam.
This message tells of a great basis from the foundations of Islam, that is, about belief ('ak'ide). Scientists took care of such short messages, wrote them, tried to make the books the most concise and understandable, then gave their students to teach these brief messages by heart. This was done so that these short messages remained for students the basis and treasure from which they will benefit themselves and benefit others.
Beginning with such short messages is the basis for acquiring knowledge! The knowledge seeker begins to acquire knowledge little by little, studying the fundamentals of the sciences and observing consistency.