A--- Narrated 'Ubada Ibn 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'Aqabah Pledge: Allah's Messenger (Peace be upon him) said while a group of his companions were around him, "Swear allegiance to me for not to join anything in worship along with Allah, not to steal, not to commit illegal sexual intercourse, not to kill your children, not to accuse an innocent person (to spread such an accusation among people), and not to be disobedient (when ordered) to do good deed. " The Prophet (Peace be upon him) added: "Whoever among you fulfills his pledge will be rewarded by Allah. And whoever indulges in anyone 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 Ibn As-Samit added: "So we swore allegiance for these (points to Allah's Messenger).”(Bukhari and Muslim)