I. Hadrat Anas ibn Malik reported that when Ramadan came, the Holy Prophet said, Indeed this month has come to you, and in it is a night more virtuous than a thousand months. So, whosoever is deprived of its blessings is deprived of all blessings. No one is kept deprived of its blessings, but only those who are unfortunate. [Sunan Ibn Majah, Vol. 1, Page 119]
II. Hadrat Aishah reported that the Messenger of Allah has said, Seek Lailatul Qadr on an odd-numbered night (21st, 23rd, 25th, 27th, and the 29th) among the last ten (nights) of Ramadan. [Sahih Bukhari, Vol. 1, Page 270]
III. Hadrat Aishah reported: I asked the Messenger of Allah: tell me what should I say (pray) on Lailatul Qadr if I know which night it is He said: say,
O Allah, You are forgiving and love forgiveness, so forgive me. [Sunan Tirmidhi, Vol. 2, Page 191]
IV. Hadrat Aishah reported that the Messenger of Allah used to strive hard in devotion in the last ten nights more than at any other time. [Sahih Muslim, Vol. 1, Page 372]