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"Verily, the Muslims (those who submit to Allaah in Islaam) men and women, the believers men and women (who believe in Islaamic Monotheism), the men and the women who are obedient (to Allaah), the men and women who are truthful (in their speech and deeds), the men and the women who are patient (in performing all the duties which Allaah has ordered and in abstaining from all that Allaah has forbidden), the men and the women who are humble (before their Lord Allaah), the men and the women who give Sadaqat (i.e, Zakaat, and alms, etc.), the men and the women who observe Sawm (fast) (the obligatory fasting during the month of Ramadaan, and the optional Nawaafil fasting), the men and the women who guard their chastity (from illegal sexual acts) and the men and the women who remember Allaah much with their hearts and tongues (while sitting, standing, lying, etc, for more than 300 times extra over the remembrance of Allaah during the five compulsory congregational prayers) or praying extra additional Nawaafil prayers of night in the last part of night, etc.) Allaah has prepared for them forgiveness and a great reward (i.e, Paradise)." [Al-Ahzaab (33):35]

Narrated 'Ubada bin As-Samit:

who took part in the battle of Badr and was a Naqib (a person heading a group of six persons), on the night of Al-'Aqaba pledge: Allah's Apostle said while a group of his companions were around him, "Swear allegiance to me for:

1. Not to join anything in worship along with Allah.
2. Not to steal.
3. Not to commit illegal sexual intercourse.
4. Not to kill your children.
5. Not to accuse an innocent person (to spread such an accusation among people).
6. Not to be disobedient (when ordered) to do good deed."

The Prophet added: "Whoever among you fulfills his pledge will be rewarded by Allah. And whoever indulges in any one of them (except the ascription of partners to Allah) and gets the punishment in this world, that punishment will be an expiation for that sin. And if one indulges in any of them, and Allah conceals his sin, it is up to Him to forgive or punish him (in the Hereafter)." 'Ubada bin As-Samit added: "So we swore allegiance for these." (points to Allah's Apostle) [The Book of Faith Volume 1, Book 2, Hadeeth 17]