This hadith includes within it all outwardly actions and inwardly beliefs. The sciences of the Sharia’ return back to this hadith due to it encompassing knowledge of the Sunnah. Hence, some of the scholars have termed this hadith the Mother or Core of the Sunnah, just as Surah al-Fatiha has been termed the Mother or Core of the Qur'aan, due to it containing the entire Message of the Qur'an.

This hadith is also known as Hadith Jibreel (Angel Gabriel) (as). The hadith tells the story of Jibreel (as) when he came to the Prophet (sas), asking a set of questions. The Prophet (sas) responded to those questions and then addressed his companions. There is a door called “Baab Jibreel” at Masjid An-Nabawi in Madina. It is known as the door that Jibreel (as) came in to ask the Prophet (sas) these questions.

The first level is Islam. A Muslim must be declared that there is no God but Allah and Muhammad (SAW) is the messenger of Allah (SWT). By declaring this a person accepts the message of Allah Almighty that is revealed to humanity through the last prophet Muhammad (SAW). After accepting Islam it is obligatory on Muslim to observe all other Islamic obligations like five daily prayers, Zakat, Fasting in Ramadan, make a pilgrimage (Hajj) of the house of Allah if he/she is capable of doing this physically and also financially. These are some obligatory things that a Muslim must follow after the proclamation of Islam. The rules of Islam come more easily to those who have prepared their hearts with Iman.

(IMAN)
Iman or faith is the first thing that we have to learn in our religion because it acts as our roots. Iman is basically to believe in Allah, His Angels, His Books, His Messengers and all the scriptures which He sent down before. As Allah Almighty said in Holy Quran: “O you who have believed, believe in Allah and His Messenger, (in) the Book that He sent down upon His Messenger, and the Scripture which He sent down before. And whoever disbelieves in Allah, His angels, His books, His messengers, and the Last Day has certainly gone far astray” (Quran, 4: 136)

(IHSAN)
Ihsan is the highest status of religion Islam. Its definition that our beloved Prophet Muhammad (SAW) described is: “To worship Allah as if you see Him, and if you do not see Him, He sees you.”  The concept of Ihsan in Islam is also that a Muslim is a responsible person where he does things in a good manner. We can say that Ihsan means a Muhsen is sure that Allah is seeing him/her in everything he/she says or does in his life. So, a Muhsen does his best to say and do only what pleases Allah Almighty and conforms to His commands.

1)TOWARDS ALLAH;

-We perform our fardhu ain ibadah

-We observe the pillar of islam, pillar of iman, ihsan

(2)Towards ourselves;

-Do all the good deeds for us to fulfill the requirements to enter jannah

-Fulfill our promises

-We do not interfere other’s beliefs, theirselves, their families and properties

-We dont ill-treat the animals n be good to them such as providing Food, care and protection

-We will avoid making sinful act towards Allah, our ownself, other human-being and other creation.

2. implication if not believing in Hari Qiamat.
1) faith in the last day is one of the pillars of faith, namely is the fifth faith, if we do not confess or believe one of the pillars of faith, the our faith is doubtful, it can be " we are considered as disbelievers" (kafir)

2) there will be amoral damage in the community so that it makes us not carry out Allah's commands but instead turn away from him.

3) we always see good and bad, benefit and harm only from worldly perspective, and from things  that material in nature. this habit will eventually develop behavior and thoughts that show a materialistic attitude.