[41]. Ha-Mim_Al-Sajdah (Prostration) also known as Surah Fussilat [They Are Explained in Detail]: Ayat 043

৪৩. আপনাকে তো তাই বলা হয়, যা বলা হত পূর্ববর্তী রসূলগনকে। নিশ্চয় আপনার পালনকর্তার কাছে রয়েছে ক্ষমা এবং রয়েছে যন্ত্রণাদায়ক শাস্তি।

Ayat 43. Nothing is said to you (O Muhammad  [SAWW](PBUH) except what was said to the Messengers before you. Verily, your Lord is the Possessor of forgiveness, and (also) the Possessor of painful punishment.  

Tafseer of Surah Ha-Mim Al-Sajdah (or Surah Fussilat) Ayat 43. Nothing is said to thee that was not said to the messengers before thee: that thy lord has at his Command (all) forgiveness as well as a most Grievous Penalty. The gist of Allah's Message, now, before, and forever, is the same: Mercy to the erring and repentant; just punishment to those who wilfully rebel against Allah.

Hazrat Ibn Umar (May Allah be pleased with them) reported: We were talking about the Farewell Pilgrimage without knowing what was it when Messenger of Allah [SAWW](PBUH) was also present. He (PBUH) stood up and recited the Praise and Glorification of Allah. He then gave a detailed account of Ad-Dajjal and said, 'Every Prophet sent by Allah had warned his people against his mischief. Nuh (PBUH) )warned his nation and so did all the Prophets after him. If he (i.e., Ad-Dajjal) appears among you, his condition will not remain hidden from you. Your Rubb is not one-eyed, but Ad-Dajjal is. His right eye is protruding like a swollen grape. Listen, Allah has made your blood, and your properties as inviolable as of this day of yours (i.e., the Day of Sacrifice), in this city of yours (i.e., Makkah), in this month of yours (i.e., Dhul -Hijjah). Listen, have I conveyed Allah's Message to you?'' The people replied in affirmative. There upon he said, "O Allah, bear witness.'' And he repeated it thrice. He (PBUH) concluded: "Do not revert after me as infidels killing one another".  [Al-Bukhari Volume 4, Book 55, Number 553]. 

Lesson: as mentioned above in Surah Ha-Mim_Al-Sajdah Ayat 43. Nothing is said to you (O Muhammad  [SAWW](PBUH) except what was said to the Messengers before you" This Hadith brings out the following three points:

1. Some marks and signs of pseudo-Messiah (Al-Masih Ad-Dajjal) are mentioned to warn the believers against his mischief.

2. The lives and properties of Muslims are inviolable for each other. In other words, it means that each of them is a protector and guardian of the life, property and honor of the other.

3. Internal war among the Muslims is a great crime and can even lead to infidelity (Kufr). May Allah save us all from it.