The first Friday night (the night between Thursday and Friday) of Rajab-i Sherîf is called the Raghâib Night, for Allâhu ta’âlâ bestows raghîbats, that is, blessings and gifts, on His human creatures throughout that night. Any invocations pronounced on that night will not be rejected, and acts of worship, such as namâz, fasting and alms, will be rewarded a number of times better than usual. He (Allah) will forgive those who respect that night. In the early ages of Islam, and before Islam, it was harâm (forbidden) to war in the months of Rajab, Dhu’lqa’da, Dhu’lhijja and Muharram. It is written in the eighth paragraph of the second chapter of the book Riyâd-un-nâsikhîn:
“It is writen in the Tafsîrs of Zâhidî and Alî Jurjânî and in all the Tafsîrs that before Islam the Arabs used to change the places of the months in order to be able to make war in the months of Rajab and Muharram by putting them forward or backward. Rasûlullah, when he performed the Farewell Hajj with ninety thousand Muslims in the tenth year of the Hegira, said:
“O my Ashâb! We are performing the hajj exactly at its proper time. The sequence of months is exactly as it was when Allâhu ta’âlâ created it!” In the year when ’Abdullah got married the places of the months were wrong. The month of Rajab was in the place of Jamâ’zil’âkhir. That is, it was one month ahead. Then, the transition of the Prophet’s blessed light to our mother Âmina is in today’s month of Jamâ’zil’âkhir. It is not on the Ragâib Night.
Endless Bliss First Fasicle | Page 231