It is recommended to recite Surat al-Kahf completely the night before Friday, and it is also recommended to do so Friday itself, before Maghrib time. Ibn Abidin said, �And it is best to do so early on Friday, in order to rush to the good and to avoid forgetting. � [Ibn Abidin, Radd al-Muhtar, �Bab al-Jumu`ah�]
The evidence for it being recommended includes the hadith related by Hakim and Bayhaqi, from Abu Sa`id (Allah be pleased with him), �Whoever recites Surat al-Kahf on Friday, light shall shine forth for him between the two Fridays.� [Ibn Hajar, Talkhis al-Habir]
It is mentioned in Heavenly Ornaments, by Imam al-Tahanawi:
The Virtues of Jumu'ah
1 . Rasulullah (Allah bless him & give him peace) said: "Friday is the best of days. It was on this day that Hadrat Aadam alayhis salaam was created, it was on this day that he was granted entry into jannah, it was on this day that he was removed from jannah (which became the cause for man's existence in this universe, and which is a great blessing), and the day of resurrection will also take place on this day. " (Sahih Muslim)
2 . It is related from Imam Ahmad rahmatullahialayh that he said that in certain aspects the rank of the night of jumu'ah is even higher than Laylatul Qadr One of the reasons for this is that it was on this night that Rasulullah (Allah bless him & give him peace) appeared in the womb of his mother Rasulullah's (Allah bless him & give him peace) appearance in this world was a cause of so much good and blessings both in this world and in the hereafter that they cannot be enumerated. (Ash'atulLama'aat)
3 . Rasulullah (Allah bless him & give him peace) said: "There is such an hour on Friday that if any Muslim makes dua in it, his dua will definitely be accepted. " (Bukhari, Muslim) The ulama have differed in specifying that hour which has been mentioned in the Hadith . Shaykh Abdul Haq Muhaddith Dehlawi rahmatullahialayh has mentioned 40 different opinions in his book Sharh Sifrus Sa'aadah . However, from among all these opinions he has given preference to two opinions: (1) That time is from the commencement of the khutbah till the end of the salaat, (2) That time is towards the end of the day . A big group of ulama have given preference to this second opinion and there are many Ahadith which support this opinion . Shaykh Dehlawi rahmatullahialayh says that this narration is correct that Hadrat Fatimah radiallahuanha used to order her maid on Fridays to inform her when the day is about to end so that she could occupy herself in making zikr and duas. (Ash'atulLama'aat)
It was also narrated (by al-Bukhaari) that the Messenger of Allaah (peace and blessings of Allaah 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.” (Narrated by Muslim, al-Jumu’ah, 1410)
It was narrated that Taariq ibn Shihaab said: “A Jewish man said to ‘Umar, ‘O Commander of the faithful, if this aayah – ‘This day, I have perfected your religion for you, completed My Favour upon you, and have chosen for you Islam as your religion’ [al-Maa'idah 5:3 – interpretation of the meaning] – had been revealed to us, we would have taken that day as an ‘Eid (festival).” ‘Umar said, “I know on which day this aayah was revealed; it was revealed on the Day of ‘Arafaah, which was a Friday.” (Narrated by al-Bukhaari, Al-I’tisaam bi’l-Kitaab wa’l-Sunnah, 6726).
there is an hour of answring Duaa It was narrated from Abu Hurayrah that the Messenger of Allaah (peace and blessings of Allaah be upon him) mentioned Friday and said: “On this day there is an hour when no Muslim slave stands and prays and asks Allaah for something, but Allaah will give it to him,” and he gestured with his hand to indicate that whatever he asks fo , is as nothing to Allaah. (Narrated by al-Bukhaari, al-Jumu’ah, 883)
Among the hadeeth which explain the reward for this day is that which was narrated by Abu Hurayrah, which says that the Messenger of Allaah (peace and blessings of Allaah be upon him) said: “Each of the five daily prayers and from one Jumu’ah prayer to the next is an expiation for the time in between, so long as one does not commit any major sin.” (al-Tahaarah, 342).
It was narrated that Abu Hurayrah said: “The Messenger of Allaah (peace and blessings of Allaah be upon him) said: ‘When Friday comes, at each door of the mosque there are angels who write down the first ones to come to the mosque. Then when the imaam sits down they close their books and come to listen to the sermon. The one who comes early (for Friday prayer) is like who sacrificed a camel, then those who come after him (in order of their coming) are like one who sacrificed a cow, then one who sacrificed a horned ram, then one who sacrificed a chicken, then like one who offered an egg.” (narrated by al-Bukhaari, al-Jumu’ah, 1416).
It was narrated in a hadeeth that the Prophet (peace and blessings of Allaah be upon him) said: “Whoever makes his wife do ghusl and does ghusl himself [i.e., has intercourse] on Friday and goes out early, walking not riding, and comes close to the imaam and listens [to the sermon] without interrupting, will have for each step he takes a reward equal to that of fasting and praying at night for one year.”
(Narrated by Ahmad and al-Tirmidhi; classed as saheeh by al-Albaani in Saheeh al-Targheeb wa’l-Tarheeb, no. 687)
