Al-hamdu Lillahi Rabbil 'alamin

Al-hamdu lillahi rabbil 'alamin (Arabic script الحمد لله ربّ العالمين) is the first Ayah of the first Surah of the Qur'an (assuming that the introductory Bismillah is not counted as the first verse).

Read more about Al-hamdu Lillahi Rabbil 'alamin:  Significance, Translation of The Meaning