The basic ruling in acts of ‘Ibadah (worship) is that they are Tawqif (bound by a religious text and not amenable to personal opinion). We should worship Allah in the manner He (Exalted be He) and His Messenger (peace be upon him) told us to, whether we know the wisdom behind this or not. This is especially so regarding acts of ‘Ibadah, such as Salah (Prayer), Sawm (Fasting), and Hajj, as the intellect has no role to play in these. It also includes what the Prophet (peace be upon him) ordained in regard to saying Takbir six or seven times after the Takbirat-ul-Ihram (saying: "Allahu Akbar" upon starting Prayer) before reciting Surah Al-Fatihah in the first Rak`ah (unit of Prayer) of the Two `Eid Prayers, and saying it five times before reciting Surah Al-Fatihah in the second Rak`ah of the Two `Eid Prayers, which is different from the Five Obligatory Prayers. We have to believe in whatever Allah (Exalted be He) and His Messenger (peace be upon him) prescribed for us, surrender to Him, and listen and obey. The basic ruling in this is to know how to perform the `Ibadah, rather than the reason for it. A servant must not interfere in matters belonging to Allah alone, such as the acts of ‘Ibadah, their types, and the manner in which they are offered. The servant must not ask why Allah has prescribed this and not that, or what can be the benefit of a certain rule that He laid down. In fact, the servant’s duty is to know what Allah and His Messenger have prescribed and act upon it. If the wisdom behind an act of `Ibadah is unveiled to them, all praise be to Allah; if not, they should surrender to Allah's Decree, obey Him, and be certain that Allah does not prescribe anything unless there is a wisdom behind it and it is for the own good of the servants. Allah (Glorified be He) is All-Wise and All-Knowing in All His Words, Deeds, Laws, and Decree, as He (Exalted be He) says:
Certainly your Lord is All-Wise, All-Knowing.
What we have said is also confirmed by the Saying of Allah (Glorified be He):
Indeed in the Messenger of Allâh (Muhammad صلى الله عليه وسلم) you have a good example to follow
(Part No. 8; Page No. 301) Also, the words of the Prophet (peace be upon him),
“Pray as you have seen me praying.”
Al-Bukhari in his "Sahih [Book of Authentic Hadith]")
The Prophet (peace be upon him) also said during the Farewell Hajj,
“Learn your rituals from me.”
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.