Narrated Ibn 'Abbas:
that the Messenger of Allah (ﷺ) said: "Whoever says (something) about the Qur'an without knowledge, then let him take his seat in the Fire." (JA)
English reference (JA): Vol. 5, Book 44, Hadith 2950 (JA)
Arabic reference (JA): Book 47, Hadith 3204 (JA)