Beginning from the Fajr of the 9th Zulhijjah up to the 'Asr prayer of the 13th, it is obligatory on each Muslim to recite the Takbir of Tashriq after every fard prayer in the following words.
Allahu Akbar, Allahu Akbar,
La Ilaha Illallahu, Wallahu Akbar,
Allahu Akbar wa lillahilhamd.
(There is no god but Allah and Allah is the greatest, Allah is the greatest and to Allah belongs all praise.)
According to authentic Islamic sources, it is obligatory on each Muslim, to recite this Takbir after every fard salah. For women also, it is commendable though not obligatory. Whether you are performing salah with Jama'ah (collectively) or on your own (individually) makes no difference. You must recite the Takbir. However, male Muslims should recite it in a loud voice, while females should recite it in a low voice