1st -10th – Days of virtue & righteous deeds Allah swears upon this day & says, “By the dawn, by the ten nights (i.e. the first 10 days of the month of Dhul-Hijjah).” (Qur’an,89:1-2)
The Prophet (peace be upon him) said, “There are no days on which righteous deeds are more beloved to Allah then these ten days, ten days of Dhul-Hijjah. They said, :”O Messenger of Allah, not even jihad for the sake of Allah?” He said, “Not even jihad for the sake of Allah, unless a man goes out himself with his wealth & does not come back home with anything.” (Al Bukhari)
How to benefit these beautiful days? Say: Tahleel (La ilah ila Allah), Takbir ( Allahu akbar) & Tahmid (Al hamdulilah) Men to say it loudly at the masajids home & street & women to say it quietly.
Performing Hajj & Umrah : One of the best deeds that one can do during these ten days is to perform Hajj to the Sacred House of Allah.
Other acts of worship: Whoever is not able to go to Haj should occupy himself with other acts of worship like prayers, reading Qur’an, fasting, dhikr, sincere repentance, duaa, charity, honoring his parents, upholding ties of kinship, enjoining good & forbidding evil.
Sacrifice: “When you see the new moon of Dhu’l-Hijja, if any one of you wants to offer a sacrifice, then he should stop cutting his hair and nails until he has offered his sacrifice.” (Muslim)
9th – Day of Arafaah :“This day I have perfected your religion for you, completed My favour upon you, and have chosen for you Islam as your religion.” (Qur’an, 5:3).
Fasting: “It expiates for the sins of the previous year and of the coming year.”( Muslim)
It is the day of forgiveness of sins, freedom from the Fire and pride in the people who are there: Aisha (may Allah be pleased with her) said that our beloved Prophet (peace be upon him) said, “There is no day on which Allah frees more people from the Fire than the Day of ‘Arafah. He comes close and expresses His pride to the angels, saying, ‘What do these people want?’” (Muslim)
10th – Eid al-Adha (Day of Sacrifice/ Yawn al Nahar) The Prophet (peace be upon him) said: “The greatest days in the scale of Allah are the Yawm an-Nahr and Al-Qarr”. (Hadith)
It is known as Yawm an-Nahr, since it marks the ending of the major rite of Hajj-Sacrifice.
Days of Tashreeq- 11th, 12th & 13th
Days of Tashreeq (fasting not allowed)
The days of Tashriq are the 11th, 12th and 13th of Dhu’l-Hijjah. There are several verses and ahadith which speak of their virtue.
“And remember Allah during the appointed Days”(Qur’an, 2:203) means reciting the Takbir (Allahu Akbar, Allahu Akbar) during the days of Tashreeq after the compulsory prayers (Ibn Kathir).
The Prophet (peace and blessings of Allah be upon him) said: “The days of Arafa (9th), the day of Sacrifice (10th) and the days of Tashreeq (11th ,12th & 13th) are our Eid. These are days of eating and drinking.” (Hadith)
Allah knows best.