The following Fatwa was issued by the following scholars of jihad:
-Sheikh Abu Qatada al Filistini
-Sheikh Abu Muhammad al Maqdisi
-Sheikh Dr Sami al Uraydi
-Sheikh Sadiq al Hashimi
-Sheikh Muslih al Alyani
-Sheikh Abu Sulayman al Ustrali
-Sheikh Abu Azzam al Jazrawi
-Sheikh Al Mu’tasim Billah al Madani
-Sheikh Dr Abdullah al Muhaysini
I personally verified that the statement is authentic from the above mentioned individuals. It is in reference to the treachery of ISIS attacking Mujaahideen forces from the rear as they are on the verge of more major victories against the regime of Bashar Assad. Below is the statement:
Verdict (Fatwa) of some of the scholars of Jihad regarding the IS group’s attack on the Mujahideen
In the name of Allah the most gracious the most merciful.
Praise be to Allah. Peace and salutations be upon the Messenger of Allah, his family, companions and whoever was guided by them.
As for what follows:
As a response to the request of a number of Mujahideen in the Levant from the scholars to issue a Fatwa (Islamic verdict) regarding the advancing of the Baghdadists (IS group) against the Mujahideen in Sawran and surrounding areas [and to] respond to the verse in which Allah mentions “And when Allah took a covenant from those who were given the scriptures [saying] You must make it clear to the people and not conceal it” (Aal Imraan 187)
We-those that have signed-issue the following Fatwa:
Praise is to Allah and Salutations be upon the Prophet, his family and all his companions. Thereafter…
It is not hidden from anyone with some understanding that the field of Shaam has experienced its greatest victories and conquests in recent times which made clear signs of panic on the tyrant Bashar and his allies. The Islamic Nation waited for further victories when suddenly the Baghdadists stabbed the Mujahideen in their backs in Sawran to stop the advancements made against the Regime and to lengthen the lifespan of this tyrant.
Based upon this we issue the verdict that it is compulsory (waajib) to repel their aggression and defend the lands of the Muslims and it is impermissible to hand over the land of Shaam to them for it has become clear the corrupted beliefs they hold. Their aggression, oppression and aggressiveness has become clear to whoever has some insight.
Allah says: “And whoever avenges himself after having been wronged - those have not upon them any cause [to blame]. The cause is only against the ones who wrong the people and tyrannize upon the earth without right. Those will have a painful punishment.” (41-42 Ash Shura)
And from what has been reported from our scholars (May Allah have mercy upon them) regarding the necessity of repelling the attacking aggressor is the statement of Ibn Taymiyyah (may Allah have mercy on him): “It is known that a person when he is attacked, it is permissible to defend according to the Sunnah (way of the Prophet) and Ijmaa (consensus of the scholars)” [Fatawa al Kubra]. Many other scholars also ruled on the necessity of defending one’s self & others against an attacker. No differentiation was made between whether the attacker is a disbeliever or a Muslim, whether the attacker is sane minded or insane, mature or immature, a person who’s blood is innocent or guilty or whether the attacker is a human or not.
The situation is no different in this case (the case of the IS attack). If the base of a Mujahid is out of danger or in a village far away (from the IS attack) then as long as those close by are not sufficient to repel their attack then it is compulsory for everyone in the land of Shaam to repel this aggression.
We ask Allah (swt) to cause their plots to return against them and to assist the Mujahideen in Allah’s cause and keep their feet firm.