Fasting .
on this day has many rewards,as reported from Imam Sadiq (peace be upon him) that fasting on this day is expiation of sins of 60 years. Ghusl.
Shaykh Shahid Awwal says it recommended to take a Ghusl on this day.Repentence / Asthagfa'ar-
The blessed night of 'Arafah is the night of praying for granting all requests. Repentance at this night is accepted, prayers answered, and acts of worship and obedience achieve the reward of 170 years of worship.(the book of Ahmad ibn Shazan) Ziarat Imam Hussain(as)-Click HereDua Ya Shahida Kulle Najwa-Click Here
It has been reported from Imam Sadiq (peace be upon him) who narrated that the Holy Prophet (peace be upon him and his family) for `Arafah NightDua - Allahumma Man Ta'ba Tahaya-Click Here
Shaykh al-Tusi, Sayyid Ibn Tawus, al-Kaf`ami, and Sayyid Ibn Baqi have recorded that it is recommended to say the following prayer on Fridays and at Friday nights and on the day and night of `Arafat (the ninth of Dhu’l-Hijjah).The supplication is as quoted from Shaykh al-Tusi’s book of al-MisbahNight of Martyrdom anniversary of Muslim ibn Aqeel (peace be upon him) - Ziyarah.Click Here
Recite the following 10 tasbeehaat as many times, even a thousand times: As reported by Hassan ibn Ashnas in his book. Abul Fath al-Baras Emla narrated on the authority of Abu Abdullah al-Hussein in Ismaeel al-Qazi, on the authority of Yusuf ibn Musa, on the authority of Muslim al-Azudi, on the authority of Urwat ibn Qays al-Yahmadi, on the authority of Umma al-Fayz the maid of Abdul Malik ibn Marvan, on the authority of Abdullah ibn Masood, “I heard Abdullah ibn Masood say, „“If anyone recites the tasbeeh 100 times on the night of Arafa, whatever he asks God the Honorable the Exalted will be fulfilled except if he prays to commit sins, or cut off ties of kinship.‟”
I asked Ibn Masood, “Did you report this on the authority of the Prophet (saws)? He said: “Yes.”
سُبْحَانَ ٱلَّذِي فِي ٱلسَّمَاءِ عَرْشُهُ
subhana alladhi fi alssama'i `arshuhu
Glory be to Him Whose Throne is in the heavens.
سُبْحَانَ ٱلَّذِي فِي ٱلأَرْضِ حُكْمُهُ
subhana alladhi fi al-ardhi hukmuhu
Glory be to Him Whose dominion is on the earth.
سُبْحَانَ ٱلَّذِي فِي ٱلْقُبوُرِ قَضَاؤُهُ
subhana alladhi fi alquburi qadha'uhu
Glory be to Him Whose decree is in the graves.
سُبْحَانَ ٱلَّذِي فِي ٱلْبَحْرِ سَبيلُهُ
subhana alladhi fi albahri sabiluhu
Glory be to Him Whose ways are in oceans.
سُبْحَانَ ٱلَّذِي فِي ٱلنَّارِ سُلْطَانُهُ
subhana alladhi fi alnnari sultanuhu
Glory be to Him Whose authority is (clearly shown) in Hellfire.
سُبْحَانَ ٱلَّذِي فِي ٱلْجَنَّةِ رَحْمَتُهُ
subhana alladhi fi aljannati rahmatuhu
Glory be to Him Whose mercy is in Paradise.
سُبْحَانَ ٱلَّذِي فِي ٱلْقِيَامَةِ عَدْلُهُ
subhana alladhi fi alqiyamati `adluhu
Glory be to Him Whose justice is on the Resurrection Day.