Yoonus Ibn Abdil A’laa (rahimahullaah) said, ”I heard Ash-Shaafi’ee (rahimahullaah) saying, ”It is better for a man to be put to trial with everything that Allaah has forbidden except Shirk than looking into (or engaging himself in) philosophical rhetoric; for indeed I have come across affairs from the people of philosophical rhetoric, which I never thought I would come across (i.e. the deviations of the people of philosophical rhetoric).
And this action (i.e. suicide bombing) will provoke malice and bitterness in his heart to such an extent that he (i.e. the Non- Muslim) may seek to wreak havoc upon the Muslims. This is what is found from the practice of the Jews with the people of Palestine so when one of the Palestinian blows himself up and kills six or seven people, then in retaliation they take sixty or more. So this does not produce any benefit for the Muslims, and does not benefit those amongst whose ranks explosives are detonated. [Translation from salafipublications.com]
Shaikhul Islaam Ibn Taymiyyah (rahimahullaah) said:
And likewise the khawaarij are a people of the sword and fighting. Their opposition to the Jamaa’ah became clear when they fought the people. As for today many of the people do not know them (i.e. due to their characteristics being different etc).
Imaam Barbahaaree (rahimahullaah) stated in Sharh- As Sunnah:
‘It is permissible to fight the Khawaarij if they attack the wealth of the Muslims, or the Muslims and their families, but if they are dispersed, then the Muslim Ruler is not to seek after them, nor are their wounded to be killed, nor is booty taken from them, nor may those taken captive be killed, nor are those who flee to be pursued.’
And regarding the saying of Imaam Barbahaaree (rahimahullaah): ‘It is permissible to fight the Khawaarij if they attack the wealth of the Muslims, or the Muslims and their families;’ because the Prophet (sallal-laahu-alayhi-wasallam) commanded that they are to be fought, and because Ali (radiyallaahu-anhu) fought them when they attacked and killed Abdullaah Ibn Khabbaab al Arrat and ripped open the stomach of his pregnant wife. So Ameerul Mumineen Ali (radiyallaahu-anhu) decided to fight them as they brought about a good reason to be fought against.
And regarding the saying of Imaam Barbahaaree (rahimahullaah): ‘But if they are dispersed, then the Muslim leader is not to seek after them’ If they desist from fighting, the ruler is not to chase them, nor carry out a military expedition against them, as long as they do not commit acts of transgression. And no doubt they are misguided and are to be advised in hope that they may return (repentant) and are not fought.
And regarding the saying of Imaam Barbahaaree (rahimahullaah): ‘Nor are their wounded to be killed’; because the evil of the injured person is curtailed.
And regarding the saying of Imaam Barbahaaree (rahimahullaah): ‘Nor is booty to be taken from them’, meaning: their wealth is not to be taken as war booty; because it is the wealth of the Muslims.
And regarding the saying of Imaam Barbahaaree (rahimahullaah): ‘Nor may those taken captive be killed’ because they are Muslims, and by being injured and taken as captive their evil is curtailed.
And regarding the saying of Imaam Barbahaaree (rahimahullaah): ‘Nor are those who flee to be pursued’. If they flee, the leader is to leave them alone and not go after them as their evil is curtailed.
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[Abridged: Source: (It-haaful Qaaree Bitta’liqaat Alaa Sharhus Sunnah Lil Imaam Barbahaaree) by Sheikh Saaleh al-Fawzaan (hafidha-hullaah) (page: 240-242, Vol: 1)]
