It is narrated from Sayyiduna Ka'b bin Malik (may Allah be pleased with him) that he said: "The Messenger of Allah (peace and blessings be upon him) stood on the pulpit in Ramadan and addressed the people. Then he (peace and blessings be upon him) said: 'I have stood on this pulpit while I know (the time of) Laylat al-Qadr, so seek it in the odd nights of the last ten.'"
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith is narrated from Sayyiduna Ka'b bin Malik (may Allah be pleased with him) only with this chain, and Sulayman bin Bilal (may Allah have mercy on him) is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 6345
Hadith Gradingمحدثین:إسناده ضعيف جدًّا، فيه عبد العزيز بن يحيى المدني متروك
Hadith Takhrij«قال الهيثمي: فيه عبد العزيز بن يحيى المدني وهو متروك «مجمع الزوائد ومنبع الفوائد، ج 3، ص 177»» «أخرجه الطيالسي فى «مسنده» برقم: 1035، والطبراني فى «الكبير» برقم: 206»