Tafsir of Al-Haqqah 69:34

Verily, he used not to believe in Allah, the Most Great, and urged not on the feeding of the poor. meaning, he did not establish the right of Allah upon him, of obedience to Him and performing His worship. He also did not benefit Allah's creation nor did he give them their rights. For verily, Allah has a right upon the servants that they worship Him alone and not associate anything with Him. The servants of Allah also have a right upon each other to good treatment and assistance in righteousness and piety. For this reason, Allah commanded performance of the prayer and the payment of Zakah. When the Prophet was (in his last moments) near death he said,

الصﻼة وما ملكت أيمانكم

The prayer (As-Salah) and your right hand possessions (i.e., slaves). Allah says,

فليس له اليوم هاهنا حميم