Sayyiduna Ubadah bin Saamit (Radi Allahu Anhu) asked the Noble Prophet (SallAllahu Alayhi wa Sallam) about Laylat al-Qadr. The Holy Prophet (SallAllahu Alayhi wa Sallam) replied:
"Laylat al-Qadr is
in the odd nights of the last ten days of Ramadan, i.e. 21st, 23rd, 25th, 27th,
29th or the last night of Ramadan. Whoever worships in this night with faith in
order to earn reward will be forgiven for all his previous sins. Some of its
signs are as follows:
» The night will be open, bright and extremely clear.
» It is neither too hot nor too cold.
» The weather is quite normal at this night and the moon is clearly visible.
» The devils are not struck with stars the whole night.
» There is another sign that is the rising of the sun without rays on the following morning, and the sun looks like the moon of the 14th night.
» Allah has prevented the devil to come out with the sunrise of that morning (apart from that one day, whenever the sun rises in the morning the devil also comes out)." [Musnad Imam Ahmad, Vol. 8, Page 414, Hadith 22829]