Pronunciation: Radee-tu bil-lahi Rab-baaa, Wa bil-is-lami-deenaaa, Wa bi-muhammadin sal-lal-lahu alai-hi Wa-sal-lama Nabiy-yaaa wa Rasoola.
Meaning: I am pleased with Allah as my Lord, and Islam as a religion, and Muhammad (Peace and Blessings of Allah be upon him) As Allah's Prophet and Messenger.
Virtue: Allah has promised that anyone who says three times every morning or evening will be pleased on the Day of Resurrection.
Reference: [Ahmed 4/337, An-Nasai Hisnul Muslim, Abu Dawood Book 4 Hadith 318, Ibn As-Sunni (no. 68), At-Tirmidhi 5/465]