The night of qadr is the most virtuous night of the year. It is better than a thousand months. Any action therein, for example, reciting the Qur'an, making remembrance of Allah, and so on, is better than acting for one thousand months which do not contain the night of qadr. It is preferred to seek this night during the last ten nights of Ramadan, as the Prophet, upon whom be peace, strove his best in seeking it during that time. We have already mentioned that the Prophet would stay up during the last ten nights, would wake his wives, and then would remain apart from them to worship.
Scholars hold different opinions as to the night which is the night of qadr.
Some are of the opinion that it is the 21st, some say the 23rd, others say the 25th and still others say it is the 29th. Some say that it varies from year to year but it is always among the last ten nights of Ramadan. Most scholars, though, vouch for the 27th. It is the night during which the Prophet ordered us to make prayers, the night of the 27th. Its sign is that the sun rises in the morning white and without any rays.