A claim about the Qur'an is that it contains abrogation of verses; that some verses were revealed by Allah only to be cancelled or replaced by later ones.
Fasting during Ramadan is an obligation of abstinence, originating in the Qur'an, that aims not at physical deprivation but at obtaining righteousness.
It is often claimed that alcohol and gambling were prohibited gradually in Islam which the Qur’an first discouraged, then restricted, and finally banned.
In Islam, the prohibition on intoxicants including alcohol is well known. However, sometimes there are debates in the Muslim world into whether some small quantities of intoxicants may be deemed acceptable as long it does not lead to intoxication.
The verses of the Qur'an establish that the salat is a scheduled practice with specific timings throughout the day and night, defined by natural celestial events.
The prohibition of consuming pork is one of the most widely known in Islamic dietary law. Traditionally, this has been understood as a total ban on the pig, making the animal itself unclean and haram. But what does the Qur'an actually say about the pig?
The Qur'an is extremely clear that " Allah condemns usury ..." (2:276) as one of the worst sins. In Islam, most people understand the term 'riba' to mean all interest.