Shahada-
Shahadah is a saying professing monotheism and accepting Muhammad as God's messenger. The shahadah is a set statement normally recited in Arabic: (ašhadu an) lā ilāha illá l-Lāhi wa (ashhadu 'anna) Muḥammadan rasūlu l-Lāhi "(I profess that) there is no god but Allah and Muhammad is the last messenger of Allah". When a person wishes to become muslim they should recite this affirmation and believe in it.
If a person has affirmed and started believing in Shahada his deeds are going to be rewarded in this life and in after life as well. It’s Allah who rewards him in this world and hereafter.
Any person who doesn’t affirm and believe in it will be rewarded in this life itself for his good deeds.
Shahada is a minimum eligibility for a person to be able to enter heaven. Because if a person does not believe in Allah who has created this world for Muhammad Peace be upon him, that person is not eligible to be placed in the Heaven.
He will be punished in the hell for his disbelief forever. And if a person affirmed to shahada still commits sins and mistake he will also spend appropriate amount of time in the hell and then shifted to heaven with the mercy of lord of universe.
If you do not know who your master is, and whose guideline you are following you are gone astray.
So it’s the responsibility of an individual to analyze and choose right deity and worship it till they impress the god and get the success of both the worlds to safeguard themselves from the traps of hell fire.
Every human being will be asked by angels three questions as soon as he enters his grave after died and buried, Two angels will come to him, make him sit up and ask him: Who is your Lord? He will reply: My Lord is Allah.
They will ask him: What is your religion? He will reply: My religion is Islam.
They will ask him: What is your opinion about the man who was sent on a mission among you? He will reply: He is the Apostle of Allah (peace_be_upon_him).
They will ask: Who made you aware of this? He will reply: I read Allah's Book, believed in it, and considered it true; which is verified by Allah's words: "Allah's Book, believed in it, and considered it true, which is verified by Allah's words: "Allah establishes those who believe with the word that stands firm in this world and the next."
The agreed version reads: Then a crier will call from Heaven: My servant has spoken the truth, so spread a bed for him from Paradise, clothe him from Paradise, and open a door for him into Paradise. So some of its air and perfume will come to him, and a space will be made for him as far as the eye can see.
He also mentioned the death of the infidel, saying: His spirit will be restored to his body, two angels will come to him, make him sit up and ask him: Who is your Lord? He will reply: Alas, alas! I do not know. They will ask him: What is your religion? He will reply: Alas, alas! I do not know. They will ask: Who was the man who was sent on a mission among you? He will reply: Alas, alas! I do not know. Then a crier will call from Heaven: He has lied, so spread a bed for him from Hell, clothe him from Hell, and open for him a door into Hell. Then some of its heat and pestilential wind will come to him, and his grave will be compressed, so that his ribs will be crushed together. One who is blind and dumb will then be placed in charge of him, having a sledge-hammer such that if a mountain were struck with it, it would become dust. He will give him a blow with it which will be heard by everything between the east and the west except by men and jinn, and he will become dust. Then his spirit will be restored to him.
Two Questions out of these are the parts of Shahada. This shows the importance of shahada in faith.
Salat-
Salat is the Islamic prayer. Salat consists of five daily prayers: Fajr, Dhuhr, Asr, Maghrib, and Isha'a. Fajr is performed at dawn, Dhuhr is a noon prayer, Asr is performed in the evening, Maghrib is the sunset prayer, and Isha'a is the night prayer. Each prayer consists of a certain amount of rakaʿāt.
More than anything Salaaat/Namaz is insisted to practice after Shahada. And there are many benefits of it, it’s also said what distinguishes between a believer and a nonbeliever is salat.
Sawm-
During the entire month of Ramadan, Muslims are obliged to fast (Arabic: صوم, sawm), every day from dawn to sunset. Fasting requires the abstinence from food and drink and sexual activity.
Fasting during the month of Ramadan is specifically mentioned in three consecutive verses of the Qur'an:
O ye who believe! Fasting is prescribed to you as it was prescribed to those before you, that ye may (learn) self-restraint. [Surah Bakarah - 2:183]
(Fasting) for a fixed number of days; but if any of you is ill, or on a journey, the prescribed number (Should be made up) from days later. For those who can do it (With hardship), is a ransom, the feeding of one that is indigent. But he that will give more, of his own free will,- it is better for him. And it is better for you that ye fast, if ye only knew. [Surah Bakarah - 2:184]
Ramadan is the (month) in which was sent down the Qur'an, as a guide to mankind, also clear (Signs) for guidance and judgment (Between right and wrong). So every one of you who is present (at his home) during that month should spend it in fasting, but if any one is ill, or on a journey, the prescribed period (Should be made up) by days later. God intends every facility for you; He does not want to put to difficulties. (He wants you) to complete the prescribed period, and to glorify Him in that He has guided you; and perchance ye shall be grateful. [Surah Bakarah - 2:185]
Zakāt-
Zakāt is one of the Five Pillars of Islam, is the giving of 2.5% of one's possessions (surplus wealth) to charity, generally to the poor and needy.
Hajj-
The Hajj is the annual pilgrimage to Mecca, Saudi Arabia.it must be carried out at least once in lifetime by every able-bodied Muslim who can afford to do so. The Hajj is a demonstration of the solidarity of the Muslim people, and their submission to Allah.The pilgrimage occurs from the 8th to 12th day of Dhu al-Hijjah, the 12th and last month of the Islamic calendar. Because the Islamic calendar is a lunar calendar, eleven days shorter than the Gregorian calendar used in the Western world, the Gregorian date of the Hajj changes from year to year.
