Speech of opposition :It should be uttered once, not three times.
What is said in Islam : Takbire-Tasrik is what is uttered from 9 th jilhajj Fazar to 13 th Jilhajj Asar. It is Wajib to say it once after each Namaj. And saying three times is Mustahab-Sunnat. It is written in many Islami Kitab about saying that three times. Those who say that saying three times do not exists is not true.