وَإِنْ أَحَدٌ مِّنَ الْمُشْرِكِينَ اسْتَجَارَكَ فَأَجِرْهُ حَتَّىٰ يَسْمَعَ كَلَامَ اللَّهِ ثُمَّ أَبْلِغْهُ مَأْمَنَهُ ۚ ذَٰلِكَ بِأَنَّهُمْ قَوْمٌ لَّا يَعْلَمُونَ (6)
(9:6) And if any of the mushriks requests you for protection so that he may come to you (to hear the Word of Allah), give him protection till he hears the Word of Allah; then convey him. to the place of his safety: this should be done because these people do not know the Truth. *8
*8) That is, "lf during a fight, an enemy makes a request that he should be given an opportunity to understand Islam, the Muslims should give him a surety of protection and allow him to visit them. They should then present Islam before him in order to make him understand it. If, after this, he dces not embrace Islam, they should convey him safely to his place" . Such a person who comes to Dar-ul-Islam under the above mentioned protection is called musta'min in the Islamic Code.