One must maintain a complete state of purity. face the direction of Ka’bah, seek forgiveness of Allah as much as possible. glorify Allah, and supplicate for one’s well being and well are in this life and in the Hereafter, and for others, with fervour, attention, and with hands raised in supplication.
Osamah bin Zaid reported: “I was riding behind the Prophet (peace be upon him) in Arafah, while he raised his hands in supplications to Allah.” (Reported by Nasa’i)
‘Amr bin Shu’aib reported from his father and his grandfather, who said that on the Day of Arafah the Prophet (peace be upon him) mostly supplicated in these words: “La ilaha illallahu wahdahu la sharika lahu, lahul mulk wa lahul hamd, biyadihil khair wa huwa ‘ala kulli sha’in qadeer (There is no deity worthy of worship but Allah Alone. He has no partners. To Him alone belongs the Kingdom, and all praise. In His hand is all the good, and He has power over all things).”
It is reported by Ahmad and Tirmizhi (and this is the wording of Tirmizhi) that the Prophet (peace be upon him) said, “The best supplication is that of the Day of Arafah, and the best thing that I and other Prophets before me said is: ‘La ilaha illallahu wahdahu la sharika lahu lahul mulk wa lahul hamd wa huwa ‘ala kuli sha’in qadeer.”‘
Al-Hussain bin Al-Hasan Al-Maruzi reported: “I asked Sufyan bin ‘Oyainah, ‘What is the best supplication for the Day of Arafah?’ He said, ‘La ilaha illallahu wahdahu la sharika lahu.’ I said, ‘But this is glorification of Allah and His praise, and it is not a supplication.’ Thereupon Sufyan said, ‘Don’t you know the hadith of Malik bin Al-Harith which explains it.’ I said to him, ‘Tell me about it.’ He said, ‘Mansur narrated from Malik bin Al-Harith that he said “Allah, the Almighty, and the Exalted One, says: ‘If a servant of Mine occupies himself in extolling and praising Me instead of asking Me for his needs I give him better than what I give to those who ask for their needs.”‘ Then he added, ‘This explains the saying of the Prophet (peace be upon him).’ He continued and said, “Haven’t you heard what Ummaya bin Abi Al-Salt said to Abdullah bin Jad’an when he sought the hand of Na’ilah in marriage?” I said, “No.” At this he said, “Ummaya recited (these lines of poetry) to Abdullah bin Jad’an: Do I have to tell you my need, or your modesty is enough (to plead my case), for modesty is your disposition, You are conversant with rights (and obligations) and come of a family polite and respectable, When someone praises you once he need not repeat it again!
Then Sufyan added, “O Hussain, you see how the humans are pleased with praise and are ready to grant request without even asking. What about their Creator then?”
Al-Baihaqi reported from Ali (with a weak chain of narrators) that the Prophet (peace be upon him) said, “The supplication most frequently used by the Prophets before me and by me on the Day of Arafah is this: ‘La ilaha illallahu wahdahu la sharika lahu, lahul mulk wa lahul hamd wa huwa ‘ala kuli sha’in qadeer. Allahumma ‘ij’al fi basri nuran wa fi sam’i nuran wafi qalbi nuran. Allahumm ashrah li sadri wa yassir li amri. Allahumma ‘uzhubika min waswasis sadri wa shatatil amr wa sharri fitnatil qabr wa sharri ma yaliju fil lail wa sharri ma yaliju fin naharwa sharri ma tahubu bihi riyah wa sharri bawa’iqid dahr (There is no deity worthy of worship but Allah alone. He has no partners. To Him belongs the kingdom and all praise, and he has power over all things. O Allah! place light (guidance) in my sight, in my ears, and in my heart. O Allah! Open my chest and ease my work. O Allah! I seek refuge with You from evil whispers, from confusion, from the trial of the grave, from the evil that takes place during the day or night, from the evil carried by the winds, and from the afflictions of the world.”
Tirmizhi also reported from Ali that the supplication used most of the time by the Prophet (peace be upon him) during his stay in Arafah was: “Allahumma lakal hamdu kallazhi naqulu wa khairam mimma naqulu, Allahumma laka salati wa nusuki wa mahyaya wa mamati wa ilaika ma’abi wa laka rabbi turathi allahumma inni a’uzhubika min ‘azhabil qabri wa waswasatis sadri wa shatatil amri allahumma inni a’uzhubika min sharri ma tahubbu bihi riyhu (All praise belongs to You, O Allah! as we say, and better than what we can say. O Allah! My prayers, my worship, my life and my death are all for You. O Allah! To You is my return, to You belong what I own. O Allah! I seek refuge with You from the torment of the grave, the evil whispers, confusion, and from whatever the wind may bring.)