(9) باب مَا جَاءَ فِي تَرْكِ الصَّلاَةِ
Narrated Abdullah bin Shaqiq Al-'Uqayli:
The Companions of Muhammad (ﷺ) didn't consider leaving anything to be disblief except for the Salat. (ES)
Reference (ES): Jami` at-Tirmidhi 2622 (ES)
In-book reference (ES): Book 40, Hadith 17 (ES)
English translation (ES): Vol. 5, Book 38, Hadith 2622 (ES)