Description of the Prayer from Its Beginning to Its End
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 46
وَ سَأَلَ رَجُلٌ أَمِيرَ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ فَقَالَ لَهُ: يَا اِبْنَ عَمِّ خَيْرِ خَلْقِ اَللَّهِ تَعَالَى مَا مَعْنَى رَفْعِ يَدَيْكَ فِي اَلتَّكْبِيرَةِ اَلْأُولَى فَقَالَ عَلَيْهِ اَلسَّلاَمُ «مَعْنَاهُ اَللَّهُ أَكْبَرُ اَلْوَاحِدُ اَلْأَحَدُ اَلَّذِي «لَيْسَ كَمِثْلِهِ شَيْءٌ» لاَ يُلْمَسُ بِالْأَخْمَاسِ وَ لاَ يُدْرَكُ بِالْحَوَاسِّ.
A man asked The Commander of the Faithful Imam Ali ibn Abi Talib عليه السلام saying: "O’ son of the cousin of the best of Allah’s سبحانه وتعالى creation, what is the meaning of raising your hands in the first Takbir (opening glorification of Allah سبحانه وتعالى)?" He عليه السلام replied: "It signifies that Allah سبحانه وتعالى 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."
- Ṣaḥīḥ al-Faqīh