من لا يحضره الفقيه, volume 1, page 306

Hadith.920 - "The Messenger of Allah (sw) was the most complete in performing prayer and the most concise. When he began his prayer, he would say: 'Allāhu Akbar (God is the Greatest)' and then recite, 'Bismillāh al-Raḥmān al-Raḥīm (In the name of Allah (swt), the Most Gracious, the Most Merciful).'"

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.921 - A man asked The Commander of the Faithful Imam Ali ibn Abi Talib (as) saying: "O’ son of the cousin of the best of Allah’s (swt) creation, what is the meaning of raising your hands in the first Takbir (opening glorification of Allah (swt))?" He (as) replied: "It signifies that Allah (swt) is the Greatest, the One, the Unique, Who 'there is nothing like unto Him.' He cannot be perceived by the senses nor touched by the limbs."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.922 - It has been narrated that in the prostration of the obligatory verses of prostration (Sajdat al-‘Azā’im), one should say: La ilaha illa Allah haqqan haqqan, la ilaha illa Allah imanan wa tasdeeqan, la ilaha illa Allah ‘uboodiyyatan wa riqqan. Sajadtu laka ya Rabbi ta‘abbudan wa riqqan, la mustankifan wa la mustakbiran, bal ana ‘abdon dhaleelun kha’ifun mustajeer “There is no god but Allah (swt), truly and genuinely; there is no god but Allah (swt) in faith and affirmation; there is no god but Allah (swt) in servitude and subjugation. I prostrate to You, my Lord (azj), in devotion and humility, without reluctance or arrogance, but as a humble, fearful, and seeking servant.” Then, he should raise his head and say “Allahu Akbar” (God is Great).

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.