(Exaltation and Glorification of Allah)
The origin of Takbeer-e-Tashreek dates back to the time when Hazrat Ibraheem (Alayhis-Salaam) made Hazrat Ismaeel lie down. Allah Ta'ala ordered Hazrat Jibraiel (Alayhis-Salaam) to take along a ransom (fidyah) to the scene of the sacrifice of Hadrat Ismaeel (Alayhis-Salaam). When Hazrat Jibraeel (Alayhis-Salaam) appeared there, he feared Ibraheem (Alayhis- Salaam) would slaughter his son and thus began reciting,
Hearing his voice, Hazrat Ibraheem (Alayhis-Salaam) took to it as a glad tiding and exclaimed:
'Laa ilaha Illallahu wallaahu Akbar"
Hazrat Ismaeel (Alayhis-salaam) also thought that the fidyah had arrived and so he rose up to eulogize and thank Allah Ta'ala saying,
"Allahu Akbar wa Lillahil Hamd"
Allaahu Akbar, Allaahu Akbar. Laa ilaaha illallaahu wallaahu Akbar. Allaahu Akbar walillaahil hamd
Translation: "Allah is most great. Allah is most great. There is no Deity besides Allah and Allah is most Great. Allah is most Great and Verily all praises are for Allah."
It is waajib to recite this Takbeer audibly once after every Fard Salaat from the morning of the ninth of Dhul Hijjah (Day of Arafah) till the Asr Salaat of the thirteenth of Dhul Hijjah. The Fatwa is that the one that performs Salaat with Jamaa'ah, and the one that performs it alone are the same as far as this law is concerned i.e. it is necessary to recite the Takbeer. It is waajib on both male and female. Females should not say the Takbeeraat loudly but softly. (Shami).
It is Mustahab (desirable) for those who read their Salaat individually (men or women) and Musafirs (travellers) to recite these Takbeeraat softly.
Note: It is necessary for men to recite these Takbeeraat in a moderately loud voice. Many people are not mindful of this: either they read it softly or do not read it at all. This negligence should be remedied