Sayyiduna Ibn Umar (may Allah be pleased with them both) narrated that some companions of the Prophet (peace and blessings of Allah be upon him) saw in their dreams that Laylat al-Qadr was in the last seven nights (of Ramadan). Then the Messenger of Allah (peace and blessings of Allah be upon him) said: I see that all your dreams agree upon the last seven nights, so whoever seeks it should seek it in the last odd nights of this week (the odd nights of the last ten are meant: 21st, 23rd, 25th, 27th, and 29th).