On the blessed day of Arafah, Muslims engage in various acts of worship, including supplications (adhkar), seeking forgiveness, and remembering Allah's greatness and mercy. Here are some recommended supplications and adhkar to say on the Day of Arafah:
1. Takbeer: Recite the Takbeer, saying "Allahu Akbar" (Allah is the Greatest) abundantly throughout the day. This glorification of Allah's greatness is a Sunnah of the Prophet Muhammad (peace be upon him) during the first ten days of Dhul-Hijjah, particularly on the Day of Arafah.
2. Tahleel, Takbeer, and Tahmeed: Recite the combination of glorifications known as "Tahleel, Takbeer, and Tahmeed," which includes saying "La ilaha illallah" (There is no god but Allah), "Allahu Akbar" (Allah is the Greatest), and "Alhamdulillah" (All praise is due to Allah).
3. Supplication for Forgiveness: Seek forgiveness from Allah for past sins and shortcomings, and repent with sincerity. Use words such as "Astaghfirullah" (I seek forgiveness from Allah) and "Allahumma innaka 'afuwwun tuhibbul 'afwa fa'fu 'anni" (O Allah, You are Forgiving and love forgiveness, so forgive me).
4. Dua for Mercy and Guidance: Make heartfelt dua for Allah's mercy, guidance, and acceptance of your prayers. Ask Allah for His blessings, guidance on the straight path, and protection from sins and misguidance.
5. Prayers for the Ummah: Remember the Muslim Ummah in your prayers, asking Allah to alleviate their suffering, grant them strength and unity, and bestow His mercy upon them.
6. Recitation of the Quran: Spend time reciting and reflecting on the Quran, particularly chapters and verses that emphasize repentance, forgiveness, and seeking Allah's mercy.
7. Remembrance of Allah (Dhikr): Engage in frequent remembrance of Allah through phrases such as "SubhanAllah" (Glory be to Allah), "Alhamdulillah" (All praise is due to Allah), "La ilaha illallah" (There is no god but Allah), and "Allahu Akbar" (Allah is the Greatest).
8. Sending Blessings upon the Prophet Muhammad (peace be upon him): Send abundant blessings and salutations upon the Prophet Muhammad (peace be upon him), invoking Allah's peace and blessings upon him and his family.
9. Personal Supplications: Offer personal supplications and heartfelt prayers for your own needs, aspirations, and well-being, trusting in Allah's mercy and provision.
10. Gratitude and Thankfulness: Express gratitude to Allah for His countless blessings, including the opportunity to observe the Day of Arafah and seek His forgiveness and mercy.
Remember that the Day of Arafah is a time of immense spiritual significance and mercy, and making the most of this blessed occasion through sincere worship, supplication, and remembrance of Allah is highly encouraged in Islam.