The Noble Scholar Shaykh ‘Abdur-Razzāq Al-Badr حفظه الله said:

“The hypocrites are negligent in three matters regarding the Salāh. They are negligent regarding the time (of the Salāh). They are negligent regarding the pillars (of the Salāh). They are negligent regarding having Khushū’ (within the Salāh).”

[Sharh Mukhtasar Sahīh Muslim #57]