Is it obligatory to read Qur’aan with the rules of Tajweed?

Some scholars of tajweed said that it is obligatory to read Qur'aan
with the rules of tajweed. Is that true?
Praise be to Allah.
The correct view is that reading Qur'aan with the rules of tajweed is
not obligatory; tajweed is only a means of making one's recitation
more beautiful. If a person reads and pronounces theletters clearly
with the vowels as marked, then this is sufficient. With regard to the
verse in which Allah, may He be exalted, says (interpretation of the
meaning): "and recite the Quran (aloud) in a slow, (pleasant tone and)
style" [al-Muzzammil 73:4], that does not refer to tajweed;rather what
is meant is toread it at a measured pace.