It is Sunnah to recite takbir (saying Allahu akbar (Allah is most great)), tahmid (saying al-hamdu Lillah (praise be to Allah)), tahlil (saying La ilaha ill-Allah (There is no god but Allah)) and tasbih (saying Subhan-Allah (Glory be to Allah)), during the first ten days of Dhul-Hijjah, saying these words out loud in the mosques, homes, streets and every place in which it is permissible to remember Allah, to perform this act of worship openly and proclaim the greatness of Allah.
Men should recite out loud and women should recite quietly.
