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"So when you have accomplished your Manasik [(i.e, Ihram, Tawaf of the Ka'bah and As-Safa and Al-Marwah), stay at Arafat, Muzdalifah and Mina, Ramy of Jamarat, (stoning of the specified pillars in Mina) slaughtering of Hady (animal, etc.)], Remember Allaah as you remember your forefathers or with a far more remembrance, But of mankind there are some who say: "Our Lord! Give us (Your Bounties) in this world!" and for such there will be no portion in the Hereafter." [Al-Baqarah (2):200]

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]