Do the first ten days of Dhul-Hijjah have a special virtue over other days, and what are the righteous deeds recommended during them?

The first ten days of Dhu al-Hijjah are great seasons of obedience, for righteous deeds performed therein are more beloved to Allah, the Almighty, than those performed during all other days of the year.

Among the recommended deeds during these days are: 1. Fasting: It is sunnah to fast the first nine days of Dhu al-Hijjah, as the Prophet (peace be upon him) encouraged righteous deeds during this period, and fasting is among the best deeds. The Prophet (peace be upon him) used to fast these days. 2. Increasing in Tahmeed (saying "Alhamdulillah"), Tahleel (saying "La ilaha illa Allah"), and Takbeer (saying "Allahu Akbar"): It is sunnah to recite these aloud in mosques, homes, and on the streets as a demonstration of worship and glorification of Allah the Almighty. Indeed, Ibn Umar and Abu Hurayrah (may Allah be pleased with them both) used to pronounce Takbeer in the marketplace during the ten days. 3. Performing Hajj and Umrah: Among the best deeds during these ten days is performing Hajj to the Sacred House of Allah. 4. Offering the Udhiyah (Sacrifice): Drawing closer to Allah the Almighty by slaughtering sacrificial animals.