Allaah, says in the Quran:
Allâh does not forbid you to deal justly and kindly with those who fought not against you on account of religion and did not drive you out of your homes. Verily, Allâh loves those who deal with equity. (Surah Mumtahinah 60:8)
The classical commentators and erudite exegetes of the Qur’aan:
Ibn Katheer: “And as for His, the Most High’s, saying, “Allaah does not forbid you to deal justly and kindly…”, meaning, (they did not assist) in expelling you (from your homes), meaning, Allaah does not forbid you from dealing with the non-Muslims who do not fight with you on account of the religion, with benevolence (ihsaan), such as the women and the weak ones amongst them. And that you show ihsaan to them and that you establish justice with them, as Allaah loves those who are just.”
Al-Qurtubi:, “This verse contains the permissibility from Allaah, the Most High, to establish good relations with those who do not show enmity towards the Muslim believers and who do not fight against them.”
Allaah also says in the Qur’an
Because of that We ordained for the Children of Israel that if anyone killed a person not in retaliation of murder, or (and) to spread mischief in the land - it would be as if he killed all mankind, and if anyone saved a life, it would be as if he saved the life of all mankind. (Surah Maa’idah 5:32).
Ibn Katheer: “…meaning that whoever killed a soul without any just cause such as retribution (for murder), or causing of mischief upon the earth, and made lawful the killing of this soul without any reason or crime then it is as if he has killed the whole of mankind…”. From al-Awfee, from Ibn Abbaas who said, “He says that whoever kills a single soul which Allaah has declared inviolable, is just like the one who killed the whole of mankind”.
The Shaikh of Saudi Arabia, Shaikh Ibn Uthaimeen (may Allaah have mercy upon his soul) stated during a telephone conversation in which the Muslims of the UK sought advice from him (in July 2000):
“To proceed, then on this night – the night prior to the Jumu’ah (’Friday’) – the 26th of Rabee’ al-Aakhir of the year 1421 – I speak to my brothers – [ in which city are you?
[[‘we are in Birmingham in Britain’]] ]
Fine, I speak to them via the telephone, hoping that my words are met with attentive ears, heedful hearts, and that Allaah causes this to be of benefit.
“…Likewise I invite you to have respect for those people who have the right that they should be respected, from those between you and whom there is and agreement (of protection). For the land which you are living is such that there is an agreement between you and them. If this were not the case they would have killed you or expelled you. So preserve this agreement, and do not prove treacherous to it, since treachery is a sign of the hypocrites, and it is not from the way of the Believers.
And know that it is authentically reported from the Prophet that he said : “ whoever kills one who is under and agreement of protection will not smell the fragrance of Paradise. “
Do not be fooled by those sayings of the foolish people : those who say : ‘Those people are non-Muslims, so their wealth is lawful for us (i.e. to be taken unjustly). ’ For by Allaah – this is a lie. A lie about Allaah’s Religion, and a lie in Islamic societies.
So we may not say that it is lawful to be treacherous towards people whom we have an agreement with.
O my brothers. O youth. O Muslims. Be truthful in your buying and selling, and renting, and leasing, and in all mutual transactions. Because truthfulness is from the characteristics of the Believers, and Allaah – the Most High – has commanded truthfulness – in the saying of Allaah – the Most High –
[meaning : O you who believe – fear and keep you duty to Allaah and be with the truthful]
And the Prophet encouraged truthfulness and said : “Adhere to truthfulness, because truthfulness leads to goodness, and goodness leads to Paradise; and a person will continue to be truthful, and strive to be truthful until he will be written down with Allaah as a truthful person”
And he warned against falsehood, and said : “ Beware of falsehood, because falsehood leads to wickedness, and wickedness leads to the Fire. And a person will continue lying, and striving to lie until he is written down with Allaah as a great liar. “
O my brother Muslims. O youth. Be true in your sayings with your brothers, and with those Non-Muslims whom you live along with – so that you will be inviters to the Religion of Islaam, by your actions and in reality. So how many people there are who first entered into Islaam because of the behaviour and manners of the Muslims, and their truthfulness, and their being true in their dealings.