The recitation of the above Takbeer is compulsory upon every male and female immediately after every Fard Salah.
Days of Takbeer:
Commences: After the Fajr Salah of the Day of Arafah (09 Zul Hijjah)
Terminates: After the Asr Salah of the last day of Tashreeq (13 Zul Hijjah)
For males, it should be recited audibly once immediately after making Salam. Females should recite it softly.
Hint: Ladies may consider sticking a little reminder at the place where they perform Salah to help them remember the recitation of the Takbeer.