Answer:
Quran: The holy book that was revealed to the last and final prophet of Islam, Muhammad (peace and blessings be upon him).
Hadith: The sayings and actions of the prophet Muhammad S.A.W.
Extra information:
If a hadith is sahih then it means the hadith is authentic and reliable.
If a hadith is da'if then it means the hadith is weak and unreliable.
Sahih means authentic in arabic.
Da'if means weak in arabic.