Greetings adam.
Indeed can you trust anyone or anything?
I think you can only trust in GOD.
Again what I say has to be subjected to checking as per [17:36], here it goes:
The way we observe our Sola, Salah,Salat... is not based on Hadith. Qoran teaches us that its rituals were in existence and were delivered and practiced by prophet Abraham way before Qoran and prophet Muhammad's time:
[Qoran 4:125] Who is better guided in his deen than one who submits totally to God, leads a righteous life, according to the creed of Abraham: monotheism? God has chosen Abraham as a beloved friend.
[Qoran 22:78] You shall strive for the cause of God as you should strive for His cause. He has chosen you and has placed no hardship on you in practicing your deen - the religion of your father Abraham. He is the one who named you "Muslimeen" originally. Thus, the messenger shall serve as a witness among you, and you shall serve as witnesses among the people. Therefore, you shall observe the Salat and give the Zakat, and hold fast to God; He is your Lord, the best Lord and the best Supporter.
[Qoran 2:127] As Abraham raised the foundations of the shrine, together with Ismail (they prayed): "Our Lord, accept this from us. You are the Hearer, the Omniscient.
[Qoran 2:128] "Our Lord, make us submitters to You, and from our descendants let there be a community of submitters to You. Teach us the rites of our deen, and redeem us. You are the Redeemer, Most Merciful.
Muhammad then delivered Qoran confirming the fact that he is a strict follower of the religion of Abraham that its rites have been already inherited. The word Millat, used in the following verse means "ways or methods of service/worship" in the Arabic dictionary. Muhammad followed the rites that were practised by Abraham:
[Qoran 16:123] Then we inspired you (Muhammad) to follow the Millat of Abraham,* the monotheist; he never was an idol worshiper.
As far as all of our rites, Qoran only dealt with whatever got altered since Abraham such as the tone of our prayer (17:110), the basic steps of ablution (5:6), the times of our five daily contact prayers, the command of giving the utmost importance to the Friday Congregational Prayer (62:9), allowing sexual relationship with our spouses during the nights of Ramadan (2:187), whatever is mentioned in regard of Hajj and Umrah, and whatever is mentioned in regard of our Zakat, with the highlight that it is due whenever we collect or receive our income (6:141). Anything in regard of our rituals that is not detailed in Qoran has been already preserved by God and passed down correctly and this is basically why it is not detailed in Qoran. GOD also clarifies by sending messengers.
Believing in Qoran alone mandates the belief in the words stated by God to teach us the above system of how we inherited our rites including of course our" Salat". This system is spelled out in 16:123, 4:125, 22:78, and 2:127-128. Ignoring this clear system issued by God, and hanging on our personal wishes to find all the details of our rituals in Qoran only reflects our disbelief in Qoran itself, the lack of trust in its divinity, and the lack of trust in God and His systems. . Indeed, Qoran is complete and fully detailed. Part of its complete details is the above system of inheriting our rites from Abraham. Either we believe in it or we choose to be with those who take the word of God partially and conditionally. Do they believe in part of the scripture and ignore other parts (2:85)? Those who do so, are the dividers in the following verses:
[Qoran 13:36] Those who received the scripture rejoice in what was revealed to you; some others may reject parts of it. Say, "I am simply enjoined to serve/worship God, and never associate any idols with Him. I invite to Him, and to Him is my ultimate destiny."
[Qoran 13:37] We revealed these laws in Arabic, and if you ever acquiesce to their wishes, after this knowledge has come to you, you will have no ally, nor a protector, against God.
[Qoran 15:90] We will deal with the dividers.
[Qoran 15:91] They accept the Qoran only partially.
[Qoran 15:92] By your Lord, we will question them all,
[Qoran 15:93] about everything they have done.
[Qoran 15:94] Therefore, carry out the orders given to you, and disregard the idol worshipers.
GOD tries us by sending human messengers to clarify. Would we ever agree? Can Qoran be understood by all? What does Qoran say about diverting some and guiding others?...
May the lord guide us to His true path.
GOD bless you.
Peace.