Friday is the day which Allah has made special for this Ummah, the nation of Muhammad, peace and blessings be upon him, and which Allah has favoured above all the other days of the week.
Sheikh M. S. Al-Munajjid, a prominent Saudi Muslim lecturer and author, states: “It should be noted that the entire life of a Muslim is for the worship of Allah; there is no special day for worship, for the Muslim every minute of life is for worship. But there is a day which Allah has made special for this Ummah, and which Allah has favoured above all the other days of the week. That day is Friday. There are a number of Hadiths which speak of the virtue of this day, including the following:

It was narrated that Abu Hurayrah quote the Messenger of Allah, peace and blessings be upon him, as saying: “We (Muslims) are the last (of the nations) but (we will be) the foremost on the Day of Resurrection, although the former nations were given their scriptures before us and we were given ours after them. And this (Friday) is the day concerning which they disputed. So Allah guided us (to it), tomorrow (i.e., Saturday) is for the Jews and the day after (i.e., Sunday) is for the Christians.” (Reported by Al-Bukhari)

It was also narrated (by Al-Bukhari) that the Messenger of Allah, peace and blessings be upon him, said: “The best day on which the sun rises is Friday. On this day Adam was created, on this day he entered Paradise and on this day he was expelled from it.” (Reported by Muslim)

It was narrated that Tariq ibn Shihab said: “A Jewish man said to `Umar, ‘O Commander of the Faithful, if this Qur’anic Ayah (verse) – ‘This day, I have perfected your religion for you, completed My Favour upon you, and have chosen for you Islam as your religion’ (Al-Ma’idah: 3) – had been revealed to us, we would have taken that day as an `Eid (Festival).” `Umar said, “I know on which day this Qur’anic Ayah was revealed; it was revealed on the Day of `Arafah, which was a Friday.” (Reported by Al-Bukhari)

Among the Hadiths that explain the reward for this day is that which was narrated by Abu Hurayrah, which says that the Messenger of Allah, peace and blessings be upon him, said: “Each of the five daily Prayers and a Jumu`ah prayer to the next is an expiation for the time in between, so long as one does not commit any major sin.”

Also, it was narrated that Abu Hurayrah quotes the Messenger of Allah, peace and blessings be upon him, as saying: ‘When Friday comes, at each door of the mosque there are angels who write down first ones to come to the mosque. Then when the Imam sits down they close their books and come to listen to the sermon. The one who comes early (for Friday prayer) is like a person who sacrifices a camel, then coming after that (in descending order) will be like sacrificing a cow, a horned ram, a chicken, then offering an egg.” (Reported by Al-Bukhari)

It was also narrated in a Hadith that the Prophet, peace and blessings be upon him, said: “One of the best of your days is Friday. On it Adam was created and on it he died. On it the Trumpet will be blown and on it all creatures will perish (prior to the Resurrection on the Last Day). So send many blessings upon me on that day, for your blessings will be shown to me.” They said, “How will our blessings be shown to you when your body will have become dust?” He said, “Allah has forbidden the earth to consume our [Prophets’] bodies.” (Reported by Abu Dawud)

It was narrated from Abu Hurayrah that the Messenger of Allah, peace and blessings be upon him, mentioned Friday and said: “On this day there is an hour when no Muslim slave stands and prays and asks Allah for something, but Allah will give it to him,” and he gestured with his hand to indicate that whatever he asks for, is as nothing to Allah. (Reported by Al-Bukhari)

It was narrated on the authority of Anas ibn Malik that the Prophet, peace and blessings be upon him, said: “Seek the hour in which prayers are likely to be answered, on Friday after `Asr (mid-afternoon) prayer, until the sun goes down.” (Reported by At-Tirmidhi)”