One question i asked and you countering it with base less questions.
Are you saying you don't believe on Surah Al-Maidah (5.3) verse no. 3
الْيَوْمَ أَكْمَلْتُ لَكُمْ دِينَكُمْ وَأَتْمَمْتُ عَلَيْكُمْ نِعْمَتِي وَرَضِيتُ لَكُمُ الْإِسْلَامَ دِينًا ۚ
Today I have perfected your faith for you, completed My favour upon you, and chosen Islam as your way.
Yes Quran is detailed for the hearts enlighted with the noor of eiman, Quran is complet till the day of Judgement. Sunnah is the practical of Quran.
Now, answer my question
1. How to perform Salah and how many Rakat s as per Quran?