one must understand that these days are a great blessing from Allaah to His slave, which is appreciated properly by the actively righteous. .Among the good deeds which the Muslim should strive to do during the first ten days of Dhu’l-Hijjah are:
Fasting. It is Sunnah to fast on the ninth day of Dhu’l-Hijjah, because the Prophet (peace and blessings of Allaah be upon him) urged us to do good deeds during this time, and fasting is one of the best of deeds. Allaah has chosen fasting for Himself, as is stated in the hadeeth qudsi: “Allaah says: ‘All the deeds of the son of Adam are for him, except for fasting, which is for Me and I am the One Who will reward him for it.’” (Reported by al-Bukhaari, 1805).
Takbeer. It is Sunnah to say Takbeer (“Allaahu akbar”),Tahmeed (“Al-hamdu Lillaah”), Tahleel (“La ilaha ill-Allaah”) andTasbeeh (“Subhaan Allaah”) during the first ten days of Dhu’l-Hijjah, and to say it loudly in the mosque, the home, the street and every place where it is permitted to remember Allaah and mention His name out loud, as an act of worship and as a proclamation of the greatness of Allaah, may He be exalted.Men should recite these phrases out loud, and women should recite them quietly.
The Takbeer may include the words “Allaahu akbar, Allaahu akbar, la ilaaha ill-Allaah; wa Allaahu akbar wa Lillaahi’l-hamd(Allaah is Most Great, Allaah is Most Great, there is no god but Allaah; Allaah is Most Great and to Allaah be praise),” as well as other phrases.
There is sound evidence that Ibn ‘Umar and Abu Hurayrah (may Allaah be pleased with them) used to go out in the marketplace during the first ten days of Dhu’l-Hijjah, reciting Takbeer, and the people would recite Takbeer when they heard them. The idea behind reminding the people to recite Takbeer is that each one should recite it individually, not in unison, as there is no basis in Sharee’ah for doing this.
Performing Hajj and ‘Umrah. One of the best deeds that one can do during these ten days is to perform Hajj to the Sacred House of Allaah. Prophet (peace and blessings of Allaah be upon him): “An accepted Hajj brings no less a reward than Paradise.”
Doing more good deeds in general, because good deeds are beloved by Allaah and will bring a great reward from Him. Whoever is not able to go to Hajj should occupy himself at this blessed time by worshipping Allaah, praying (salaat), reading Qur’an, remembering Allaah, making supplication (du’aa’), giving charity, honouring his parents, upholding the ties of kinship, enjoining what is good and forbidding what is evil, and other good deeds and acts of worship.
Sacrifice. One of the good deeds that will bring a person closer to Allaah during these ten days is offering a sacrifice, by choosing a high-quality animal and fattening it, spending money for the sake of Allaah.
Sincere repentance. One of the most important things to do during these ten days is to repent sincerely to Allaah and to give up all kinds of disobedience and sin. Repentance means coming back to Allaah and foregoing all the deeds, open and secret, that He dislikes, out of regret for what has passed, giving it up immediately and being determined never to return to it, but to adhere firmly to the Truth by doing what Allaah loves.
“But as for him who repented, believed and did righteous deeds, then he will be among those who are successful.” [al-Qasas 28:67]
“So whosoever does good equal to the weight of an atom, shall see it,And whosoever does evil equal to the weight of an atom, shall see it.”
is it not time that your heart was filled with light and became soft? Expose yourself to the gentle breeze of your Lord’s mercy during these ten days, for Allaah will cause this breeze to touch whomever He wills, and whoever is touched by it will be happy on the Day of Judgement. May Allaah bless our Prophet Muhammad and all his Family and Companions.