[17].Surah Al-Isra' [The Journey By Night]: Ayat 4

 also called as Surah Bani Israel [The Children of Israel]

Ayat 4. And We decreed for the Children of Israel in the Scripture, that indeed you would do mischief on the earth twice and you will become tyrants and extremely arrogant!

Hazrat Abdullah bin Masud (May Allah be pleased with him) reported: Messenger of Allah [SAWW](PBUH) said, "When the Children of Israel became sinful, their learned men prohibited them but they would not turn back. Yet, the learned men associated with them and ate and drank with them. So, they were cursed at the tongues of Dawud and `Isa (Jesus), son of Maryam (Mary), because they were disobedient and were given to transgression.'' At this stage Messenger of Allah [SAWW](PBUH) who was reclining on a pillow sat up and said, "No, By Him in Whose Hand my soul is, there is no escape for you but you persuade them to act justly.''

[At-Tirmidhi Hadith # 3047 & 3048]. 

Lesson : as mentioned above in Surah Al-Isra Ayat 4."you would do mischief on the earth twice and you will become tyrants and extremely arrogant". This Hadith tells us that the duty of `Ulama' is to check the people from vice and if, in spite of all their efforts people do not abandon them, they should avoid associating with them because it is a matter of religious reverence and vanity. If they do not do it, they will also be cursed like the disobedient lot. May Allah save us from this negligence.