The Prophet (Sallallahu 'Alaihi Wa Sallam) said, "Allah has forbidden you
(1) to be undutiful to your mothers
(2) to withhold (what you should give)
(3) demand (what you do not deserve), and
(4) to bury your daughters alive.

And Allah has disliked that
(A) you talk too much about others
(B),ask too many questions (in religion),
(C) waste your property."

Bukhari Vol. 8 : No. 6

Insha-allah, we should try to understand this Hadith and implement in our daily life.

Muslims 'must' follow both Quran and Hadith

As Muslims, we need to follow both:
1. Quran : Holy book from Allah
2. Hadith : Describes how Prophet Muhammad (Sallahu Alaihi Wa-Sallam) lived his life which is what Muslims should follow.

There are some people who will 'reject' Hadith but accept Quran. May Allah guide these people.

In Quran, there are few places where Allah commanded us to obey Allah and  the Messenger (Sallahu Alaihi Wa-Sallam). Few Verses from Quran:

He who obeys the Messenger has obeyed Allah ; but those who turn away - We have not sent you over them as a guardian. (Sura An-Nisa : 4:80)


And obey Allah and obey the Messenger and beware. And if you turn away - then know that upon Our Messenger is only [the responsibility for] clear notification. (Sura Al-Maidah: 5:92)

Another example is Quran commands Muslims to Pray, and Hadith will  how Prophet Muhammad (Sallahu Alaihi Wa-Sallam) prayed.

So basically, Muslims must follow both Quran and Hadith. May Allah bless us and guide us insha-allah.