Source : Islamweb / 26 Feb 2014

Number 7 is also very frequent in the Prophetic narrations. Take for example the narration in which the Prophet, sallallaahu `alayhi wa sallam, defined the number of major sins to be seven.

The Prophet, sallallaahu `alayhi wa sallam, said: "Avoid the seven great destructive sins." (Al-Bukhaari and Muslim)

When the Prophet, sallallaahu `alayhi wa sallam, mentioned the persons whom Allaah would give protection under His Shade on the Day of Judgment, He stated that they are seven categories of people. The Prophet, sallallaahu `alayhi wa sallam, said:

"Seven are (the types of people) whom Allaah would give protection with His Shade on the Day when there would be no shade but that of Him (i. e. on the Day of Judgment … " (Al-Bukhaari and Muslim)

When the Prophet, sallallaahu `alayhi wa sallam, talked about oppression and anger, he mentioned this number in the following narration: "He who usurps even a hand span of land would be made to wear around his neck seven earths." (Al-Bukhaari and Muslim)

Also when talking about the Quran, the Prophet, sallallaahu `alayhi wa sallam, mentioned this number. He (peace and blessings of Allah be upon him) said: "This Quran has been revealed to be recited in seven different ways (i.e. of recitation)." (Al-Bukhaari and Muslim)

When talking about the legal means for treatment from an illness, the Prophet, sallallaahu `alayhi wa sallam, enjoined the Muslim to put his hand where he feels pain and say seven times: "I seek refuge with Allaah and with His Power from the evil that I find and that I fear." (Muslim)

Talking about food, the Prophet, sallallaahu 'alayhi wa sallam, also mentioned number seven. He said: "If somebody takes seven dates in the morning, neither magic nor poison will harm him that day." (Al-Bukhaari and Muslim)

Number seven is also mentioned in the obligatory Hajj, as a believer circumambulates the Ka`abah seven rounds during the performance of this great act of worship.

Also a believer walks seven rounds between As-Safaa and Al-Marwah, and throws seven pebbles in the Jamaraat.