and Allah said "And proclaim the pilgramage among men; they will come to thee on foot and on every kind of camel. Lean on account of Journeys through deep and distant mountain highways" Surah 22 ~ Al Hajj Part 27
qadr - power
Revealed in Makkah
Bismillah arak maan nira heem, Alhamdhulillahi Rabil Alamin; arak maan nira heem
Inna anzalnaahu fii Laylatiil - Qadr
Maa adraka maa laylatul - Qadr?
Laylatul - Qadri khayrum - min 'alfi Shahr
Tanazzalul - malaaikatu war Ruuhuu fiihaa bi - idhni Rabihim - min kulli amr
Salaamun hiya hattaa mat - la il Fajr!
In the name of Allah, the Beneficent, the Merciful
We have revealed it on the Night of Power
What will convey on to you what the Night of Power is?
The Night of Power is better than a thousand months
The Angels and Spirits decend down by the permission of their Lord with all decrees
(That night has) Peace until the rising of the dawn
This is the night of Prophet Muhammad's ascession, revealation and decree of prayer ~ five times a day. No one is sure but it occurs either 23rd , 25th or 27th night of Ramadan despite the general consensus amongst many for the 27th.