Allah is the Greatest (3x), there is no god but Allah, Allah is the Greatest (2x — Hajj & Umrah
اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ لَا إِلَهَ إِلَّا اللَّهُ وَاللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ وَلِلَّهِ الْحَمْدُ
Transliteration: Allaahu akbar Allaahu akbar Allaahu akbar laa ilaaha illallaah wallaahu akbar Allaahu akbar wa lillaahil-hamd
Translation: Allah is the Greatest (3x), there is no god but Allah, Allah is the Greatest (2x), and to Allah belongs all praise. (Takbir of Eid and days of Tashreeq)
Reference: Al-Bayhaqi