Shaykh al-Islām Ibn Taymiyyah رَحِمَهُ اللهُ said:
“The one who abandons the Ṣalāh is worse than the thief and the fornicator with unanimous agreement of the scholars.”
Source: Jāmi’ al-Masā’il (v. 4 p. 146).
Translation source: MuSunnah.com
