[16].Surah An-Nahl [The Bees] : Ayat 27

Ayat 27. Then, on the Day of Resurrection, He will disgrace them and will say: "Where are My (so called) 'partners' concerning whom you used to disagree and dispute (with the believers, by defying and disobeying Allah)?" Those who have been given the knowledge (about the Torment of Allah for the disbelievers) will say: "Verily! Disgrace this Day and misery are upon the disbelievers. 

Hazrat Usamah bin Zaid (May Allah be pleased with them) reported: Messenger of Allah  [SAWW](PBUH) said, "A man will be brought on the Day of Resurrection and will be cast into Hell, and his intestines will pour forth and he will go round them as a donkey goes round a millstone. The inmates of Hell will gather round him and say: `What has happened to you, O so-and-so? Were you not enjoining us to do good and forbidding us to do evil?' He will reply: `I was enjoining you to do good, but was not doing it myself; and I was forbidding you to do evil, but was doing it myself".  [Al-Bukhari Book 04, Chapter 54, Hadith # 489]. 

Lesson : as mentioned above in Surah An-Nahl Ayat 27.Those who have been given the knowledge (about the Torment of Allah) This Hadith serves a stern warning for such `Ulama', preachers and reformers of the Ummah whose own conduct is contrary to the sermons they give from the pulpit.