Concerning the Imaam, the Shaykh - Muhammad ibn Saalih al-'Uthaymeen (rahima-hullaah), it has been narrated:
?During the Jumu'ah khutbah, the Shaykh mentioned the excellence of reciting Soorah al-Faatihah before sleeping, and encouraged (everyone) to recite it. After the khutbah, one of the students of knowledge reminded the Shaykh, saying:
?O Shaykh, you probably meant the excellence of Aayatul-Kursee?
The Shaykh then realised he had unintentionally made a mistake, so he corrected his mistake immediately before the congregation left, warning them a mistake had been made in the khutbah and that which is correct is reciting Aayatul-Kursee before sleeping.?
al-Jaami? li-Hayaat al-?Allaamah Muhammed ibn Saalih al-Uthaymeen ? Page 43