CAN SOMEONE CALIRIFY IF THIS IS SAHEEH?
This is a very interesting thread. Many people in the Asian culture say they should fast on the 27th of Rajab. This is because they say this is to remember/celebrate the day of date of Al-Israa’ and Al-Mi`raj. But I had to research also to see where this evidence came from and if it was authentic. As I know many people mix culture with Islam. Innovations have been passed down over the generations, so it's better to be safe by researching then sorry. I found the following information from islamonline.net
Fasting the 27th of Rajab?
Dear Sheikh! Is there any specific reward or merit pertaining to 27 Rajab? What about fasting on that day? Is it true that Al-Israa’ and Al-Mi`raj (Night Journey and Ascension of the Prophet—peace and blessings be upon him) happened on that night?
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
Dear questioner! Thank you for this question, which reflects a true desire to gain more knowledge about Islam and its guidance.
It should be noted, first of all, that the exact date of Al-Israa’ and Al-Mi`raj is not known. There is no evidence to support the saying that it happened on 27th of Rajab. Even if 27th of Rajab is the day of Al-Israa’ and Al-Mi`raj, there is no way to say that we have to fast that day, since we cannot innovate fasting on our own without having evidence from the sources of Shari`ah supporting it.
However, if a person customarily fasts on Mondays and Thursdays and 27th of Rajab falls on one of those two days, then there is nothing wrong in fasting on that day.
Elaborating on this issue, the eminent Muslim scholar Sheikh Yusuf Al-Qaradawi states:
Among the prohibited types of fasting is any kind of fasting people initiate on their own without any Shari`ah text or evidence. An example of this is the fasting on the 27th of Rajab thinking that it is the day that followed the night of Al-Israa’ and Al-Mi`raj.
Some people would fast on that day as a token of gratitude and thankfulness to Allah for the blessing of Al-Israa’ and Al-Mi`raj. It is really important for a Muslim to prove thankful in the remembrance of every event that brought blessings to the Muslim Ummah. These events are many indeed.
However, this thankfulness does not mean that a Muslim has to fast. Almighty Allah reminds Muslims of so many blessings He has given to them. Allah says: (O ye who believe! Remember Allah's favor unto you when there came against you hosts, and We sent against them a great wind and hosts ye could not see.) (Al-Ahzab 33: 9) However, Almighty Allah did not ask them to fast and they never did.
In his brilliant book Zad Al-Ma`ad, Imam Ibn Al-Qayyim wrote that Ibn Taymiyahsaid, “It is not recorded that any Muslim attributed any merit or privilege to the night of Al-Israa’ and Al-Mi`raj. None of the Companions ever did so. That is why we cannot tell when exactly Al-Israa’ and Al-Mi`raj happened.” Ibn Al-Qayyim wrote, "There is no clear evidence of the exact month when it happened, or the exact date of it. There are, in fact, so many reports in this regard and none of them is decisive. There is no specific ritual pertaining to it."
It is thus clear that there is no clear evidence that the night of Al-Israa’ and Al-Mi`raj is on the 27th of Rajab, despite of the common belief that it happened that day.
So unless we are fasting voluntarily on a monday or a thursday, there is no evidence to suggest that we should fast because of celebrating al israa al mi'raaj. Our intention should not be of that. However if the monday or thursday where we would generally fast voluntary coincides, as in it just happens to be the day of when it is believed to be the night of al-Israa' al- Mi'raj then there is no harm in fasting on that day.