This is a quick response to Hadith rejectors and Quranists.
A) Ayahs=Verses that talk about hadith
1) in more than eighty places in the Qur’an, Allah swt says:
“O you who believe! Obey Allah and obey the Messenger (Muhammad (blessings and peace of Allah be upon him))”
2) al-Nahl 16:44, Allah says Allah sent down two things, Quran, and its explanation (ahadith)
“And We have also sent down unto you (O Muhammad صلى الله عليه وسلم) the Dhikr [reminder and the advice (i.e., the Qur’an)], that you may EXPLAIN (hadith) clearly to men what is SENT DOWN (Quran) to them, and that they may give thought”
3) an-Noor 24:63
Allah says to obey the Messenger’s commandment (I.e., hadith and cannot be Quran)
“And let those who oppose the Messenger’s (Muhammad (blessings and peace of Allah be upon him)) commandment (i.e., his Sunnah— legal ways, orders, acts of worship, statements) (among the sects) beware, lest some Fitnah (disbelief, trials, afflictions, earthquakes, killing, overpowered by a tyrant) should befall them or a painful torment be inflicted on them.”
B) Hadith is required to elaborate the Quranic commands
1) how can he establish the prayer which Allah, may He be exalted, enjoined upon him in His holy Book? What are the numbers of the prayers? What are the times of the prayers? What are the conditions of them being valid? What invalidates the prayer? And you may ask similar questions about zakat, fasting, Hajj, and all the other rituals and laws of Islam.
2) Cutting of hands for theft
How will he apply the words of Allah, may He be glorified and exalted (interpretation of the meaning): “Cut off the hand of the thief, male or female, as a recompense for that which they committed, a punishment by way of example from Allah. And Allah is All-Powerful, All-Wise” [al-Ma’idah 5:38]? What is the minimum value of wealth that defines theft?
From where should the hand be cut off?
Is it the right hand or the left hand? What are the conditions to be met with regard to the stolen item?
And you may ask similar questions about the hadd punishments for zina (fornication or adultery), slander, li‘aan and so on.
3) Eating fish
“Forbidden to you (for food) are Al-Maytatah (the dead animals – cattle-beast not slaughtered), blood…” [al-Ma’idah 5:3].
The hadith explains that “dead meat” [that which is not slaughtered in the prescribed manner] of locusts and fish, and liver and spleen, which come under the category of blood, are halal.
C) Major issues if hadith is not taken along with Quran
1) Allah says in Surah Rum 30:30
“Do not change the nature on which Allah has created you…”
It would mean one should not cut nails, armpit hairs, or head hair ever!!!
It’s the hadith which then elaborates the Ayah and says, to cut nails, and armpit hairs, head hair for beautification etc.
2) Allah says in 4:115.
Lock your (adulterous) wives until they die!
“AND as for those of your women who become guilty of immoral conduct, call upon 4 from among you who have witnessed their guilt; and if these bear witness thereto, CONFINE the guilty women to their houses until DEATH takes them away or God opens for them a way [through repentance].”
No one applied above Ayah because the Hadith gives the alternate ruling/Hadd punishment for adulterous women.
Allah knows Best.
Arrogance is not only a sign of insecurity, but also a sign of immaturity. Mature and fully realised persons can get their points across, even emphatically without demeaning or intimidating others.