Hadiths are nevertheless necessary as there are many commands in Quran which do not have details.
E.g, We are told to observe prayers (Aqeemus Salah) but we are not told in Quran the timings, the rakahs or the method of praying. Same case for Zakah as to what value is Zakah obligatory etc and so on.
I respectfully disagree to what you are implying -----.
This verse not only clearly talks about the numbers but also the timming of the Salat
(11:114) And establish the Salat at the two ends of the day and in the first hours of the night.[113] Indeed the good deeds drive away the evil deeds. This is a Reminder to those who are mindful of Allah.
As for the percentage of charity, This verse has explained it all
Al Anfal verse 41
And know that anything you obtain of profit – then indeed, for Allah is one fifth of it and for the Messenger and for near relatives and the orphans, the needy, and the traveler, if you have believed in Allah and in that which We sent down to Our Servant on the day of criterion – the day when the two armies met. And Allah, over all things, is competent.
the Muslim priesthood in cohorts with the royalty of the day applied poetic standards to Al Quran for manipulating /changing the meaning of the word 'Ghanimtum' as spoils of war and many others ,which isn't factual as then what would the title of the Surah means ? Or is Allah Swt using two separate words for conveying a same meaning , I don't think so.
Didn't Allah Swt warn in the Quran not to take His words as poetry?
Hadiths are nevertheless necessary as there are many commands in Quran which do not have details.
Should I seek other than Allah as a lawmaker when it is He who has brought down to you
the Book fully detailed? 6:114
We did not leave anything out of the Book. 6:38
This is not a fabricated hadith, but an authentication of what came before it,
a detailed account of all things, and guidance and mercy for people who believe.12:111