The ruling on the residents of a neighborhood who pray but do not advise those who neglect it

Question:
Honorable Shaykh Salih, may Allah’s peace, mercy, and blessings be upon you. In the neighborhood where I live, many people do not pray, and no one advises them. Do the people who live in the neighborhood and do pray commit a sin? What is obligatory for them? Does the imam of the mosque commit a sin for this or not? Please inform us, may Allah reward you.

Answer:
Those who pray in the mosque have fulfilled the obligation of prayer, but they have neglected the obligation of enjoining good and forbidding evil. It is obligatory for them to forbid evil and to advise their neighbors and anyone they see neglecting the prayer. The imam and those other than the imam should cooperate and report these individuals to the headquarters of the Committee for Promoting Virtue and Preventing Vice to take action against them if they do not respond to advice. If they do not respond, their case is referred to the Committee’s headquarters. Each person should report to the nearest center, providing the names of those who are neglecting the prayer.