1. Narrated 'Abdullah Radiyallahu Anh: Allah's Messenger PBUH said, "The keys of the unseen are five: Verily Allah! With Him (Alone) is the knowledge of the Hour, He sends down the rain, and knows that which is in the wombs. No person knows what he will earn tomorrow, and no person knows in what land he will die. Verily, Allah is All-Knower, Well-Acquainted with all things." (Sahih Al-Bukhari, Vol.6, Hadith No.151).

2. Narrated Abu Hurairah Radiyallahu Anh: The Prophet (PBUH) said, "There was no Prophet among the Prophets but was given miracles because of which people had security or had belief, but what I have been given is the Divine Revelation which Allah has revealed to me. So, I hope that my followers will be more than those of any other Prophet on the Day of Resurrection." (Sahih Al-Bukhari , Vol.9, Hadith No.379)

3. It is obligatory to have Belief in the Messerngership of the Prophet (Muhammad Peace and Blessings of Allah Be Upon Him). Narrated Abu Hurairah Radiyallahu Anh: Allah's Messenger PBUH said: "By Him (Allah) in Whose Hand Muhammad's soul is, there is none from amongst the Jews and Christians (of these present nations) who hears about me and then dies without believing in the Message with which I have been sent (i.e. Islamic Monotheism), but he will be from the dwellers of the (Hell) Fire." (Sahih Muslim, the Book of Faith, Vol. 1, Chapter No.240)

4. Narrated Abu Hurairah Radiyallahu Anh: The Prophet (PBUH) said: "Angels come (to you) in succession by night and day, and all of them get together at the time of the Fajr and 'Asr prayers. Then those who have stayed with you overnihgt, ascend to Allah, Who asks them (and He knows the answer better than they): "How have you left My slaves?" They reply, "We left them while they were praying and we came to them while they were praying." The Prophet PBUH added: "If anyone of you says Amin (during the prayer at the end of the recitation of Surat Al-Fatihah), and the angels in heaven say the same, and the two sayings coincide, all his past sins will be forgiven." (Sahih Al-Bukhari, Vol.4, Hadith No.446)

5. Whoever intended to do a good deed or a bad deed

Narrated Ibn 'Abbas Radiyallahu Anhuma: The Prophet PBUH narrating about his Lord (SWT) said, "Allah ordered (the angels appointed over you) that the good and the bad deeds be written, and He then showed (the way) how (to write). If somebody intends to do a good deed and he does not do it, then Allah will write for him a full good deed (in his account with Him); and if he intends to do a good deed and actually des it, then Allah will write for him (in his account) with Him (its reward equal) from ten to seven hundred times, to many more times; and if somebody intended to do a bad deed and he does not do it, then Allah will write a full good deed (in his account) with Him, and if he intended to do it (a bad deed) and actually does it, then Allah will write one bad deed (in his account)." (Sahih Al-Bukhari, Vol.8 Hadith No.498)

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Authentic Hadith

HOLY QUR'AN

Surat Al-A'raf
[The Heights (or The Wall with Elevations)]

(Verses 187 - 200)
In the Name of Allah,
the Most Gracious, the Most Merciful

Verse 187 : They ask you (O Muhammad PBUH) about the Hour (Day of Resurrection): "When will be its appointed time?" Say: "The knowledge thereof is with my Lord (Alone). None can reveal its time but He. Heavy is its burden through the heavens and the earth. It shall not come upon you except all of a sudden." They ask you as if you have a good knowledge of it. Say: "The knowledge thereof is with Allah (Alone), but most of mankind know not."

Verse 188: Say (O Muhammad PBUH): " I possess no power over benefit or harm to myself except as Allah wills. If I had the knowledge of the Ghaib (Unseen), I should have secured for myself an abundance of wealth, and no evil should have touched me. I am but a warner, and a bringer of glad tidings to a people who believe."

Verse 189: It is He Who has created you from a single person (Adam), and (then) He has created from his his wife [Hawwa (Eve)], in order that he might enjoy the pleasure of living with her. When he (a polytheist from Adam's offspring - as stated by Ibn Kathir in his Tafsir) had sexual relation with her (the polyetheist's wife), she became pregnant and she carried it about lightly. Then when it became heavy, they both invoked Allah, their Lord (saying): "If You give us a Salih (good in every aspect) child, we shall indeed be among the grateful."

Verse 190: But when He gave them (the polytheist and his wife) a Salih (good in every aspect) child, they (the polytheist and his wife) ascribed partners to Him (Allah) in that which He has given to them. High is Allah, Exalted above all that they ascribe as partners to Him . (Tafsir Ibn Kathir).

Verse 191: Do they attribute as partners to Allah those who created nothing but they themselves are created?

Verse 192: No help can they give them, nor can they help themselves.

Verse 193: And if you call them to guidance, they follow you not. It is the same for you whether you call them or you keep silent.

Verse 194: Verily, those whom you call upon besides Allah are slaves like you. So call upon them and let them answer you if you are truthful.

Verse 195: Have they feet wherewith they walk? Or have they hands wherewith they hold? Or have they eyes wherewith they see? Or have they ears wherewith they hear? Say (O Muhammad PBUH): "Call your (so-called) partners (of Allah)and then plot against me, and give me no respite!

Verse 196: Verily, my Wali (Protector, Supporter, and Helper) is Allah Who has revealed the Book (the Qur'an), and He protects (supports and helps) the righteous.

Verse 197: And those whom you call upon besides Him (Allah) cannot help you nor can they help themselves.

Verse 198: And if you call them to guidance, they hear not and you will see them looking at you, yet they see not.

Verse 199: (O Muhammad PBUH) Show forgiveness, enjoin what is good, and turn away from the foolish (i.e. don't punish them).

Verse 200: And if an evil whishper comes to you from Shaitan (Satan), then seek refuge with Allah. Verily, He is All-Hearer, All-Knower.

(Source: from the Noble Qur'an English Translation)