As-salamu alaikum wa Rahmatullahi wa Barakatoh,
Holy Prophet Muhammad al Mustafā (salla llāhu ʿalayhi wa-alehe wa-sallam) said:
An obligatory prayer, with Allah, is equi
valent to one thousand Hajj pilgrimages and one thousand Umrah per
formances (voluntary pilgrimages to Ka'ba) which are right and
accepted."
[Reference: Bihar-ul-Anwar, vol. 99, p. 14 ]