ABANDONING THE PRAYER H 1096 "The treaty between us and them (the hypocrites) is prayer. Whosoever abandons it is an unbeliever." R 1096 Tirmidhi with a chain up to Buraidah who related that the Messenger of Allah, praise and peace be upon him, said this.
1079 - وعن بُرَيْدَة رضي الله عنه ، عن النبيِّ صلى الله عليه وآله وسلم ، قَالَ : "العَهْدُ الَّذِي بَيْنَنَا وَبَيْنَهُمْ الصَّلاَةُ ، فَمَنْ تَرَكَهَا فَقَدْ كَفَرَ" رواه التِّرمِذِيُّ ، وَقَالَ : "حَدِيثٌ حَسَنٌ صحيح" .