And the believers, men and women, are protecting (and allied) friends of one another;

they enjoin the right and forbid the wrong, and they establish worship and they pay the poor-due, and they obey God and His Messenger. As for these, God will have mercy on them; verily God is Mighty, and Wise. God promises the believers, men and women, Gardens under which rivers flow, to dwell therein, and beautiful mansions in Gardens of everlasting bliss. But the greatest bliss is the Good Pleasure of God.That is the supreme felicity(Qur’an,9:71-72).

﴿وَالْمُؤْمِنُونَ وَالْمُؤْمِنَاتُ بَعْضُهُمْ أَوْلِيَاءُ بَعْضٍ يَأْمُرُونَ بِالْمَعْرُوفِ وَيَنْهَوْنَ عَنْ الْمُنكَرِ وَيُقِيمُونَ الصَّلاَةَ وَيُؤْتُونَ الزَّكَاةَ وَيُطِيعُونَ اللَّهَ وَرَسُولَهُ أُوْلَئِكَ سَيَرْحَمُهُمْ اللَّهُ إِنَّ اللَّهَ عَزِيزٌ حَكِيمٌوَعَدَ اللَّهُ الْمُؤْمِنِينَ وَالْمُؤْمِنَاتِ جَنَّاتٍ تَجْرِي مِنْ تَحْتِهَا الأَنْهَارُ خَالِدِينَ فِيهَا وَمَسَاكِنَ طَيِّبَةً فِي جَنَّاتِ عَدْنٍ وَرِضْوَانٌ مِنْ اللَّهِ أَكْبَرُ ذَلِكَ هُوَ الْفَوْزُ الْعَظِيمُ﴾

The true believers are those only who believe in God and His Messenger (Muhammad) and afterward doubt not, but strive with their wealth and their lives for the cause of God. Such are the sincere (Qur’an, 49:15). Besides these Qur’anic references, there are many relevant Traditions of Muhammad. For example, he says: None of you can be a true believer unless, he loves for his fellow believer what he loves for himself.

Three qualities are the sign of sound faith, and he who acquires them can really feel the sweet taste of Faith. They are (1) to love God and his Messenger most of all, (2) to love his fellow man for the sake of God alone, and (3) to resent and resist returning to disbelief as much as he does being cast into fire.

He who believe in God and Last Day of Judgement is forbidden to cause any harm to his neighbor, is to be kind to his guests – especially the strangers, and is to say the truth or else abstain.

There are many verses and traditions like the ones cited above. But it should be borne in mind, however, that the given quotations are not and cannot be the exact words of the Qur’an and Muhammad as they sound in the Arabic Text. The reason for that is simple. No interpreter, however learned and masterful he may be, can ever convey the spiritual power and charming appeal of the Qur’an through any language.