(V.81:1) Narrated Abu Hurairah رضي الله عنه: The Prophet صلى الله عليه وسلم said, "The sun and the moon will be folded up (or joined together or deprived of their lights) on the Day of Resurrection." [See the Qur’ân (V.75:9)] (Sahih Al-Bukhari, Vol.4, Hadith No.422).
(V.81:8) Narrated Al-Mughîrah bin Shu‘bah رضي الله عنه: The Prophet صلى الله عليه وسلم said, "Allâh has forbidden for you: (1) to be undutiful to your mothers, (2) to bury your daughters alive, (3) not to pay the rights of the others (e.g., charity), and (4) to beg of men (i.e., begging). And Allâh hates for you: (1) sinful and useless talk like backbiting, or that you talk too much about others, (2) to ask too many questions (in disputed religious matters), and (3) to waste the wealth (by extravagance with lack of wisdom and thinking)." (Sahih Al-Bukhari, Vol.3, Hadith No.591).
(V.81:27)
a) Narrated Abu Hurairah رضي الله عنه: The Prophet صلى الله عليه وسلم 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 Allâh 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)
b) It is obligatory to have Belief in the Messengership of the Prophet (Muhammad صلى الله عليه وسلم).
Narrated Abu Hurairah رضي الله عنه: Allâh’s Messenger صلى الله عليه وسلم said: "By Him (Allâh) 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. Islâmic Monotheism), but he will be from the dwellers of the (Hell) Fire." (Sahih Muslim , the Book of Faith, Vol.1, Chapter No.240). See also (V.3:85) and (V.3:116).