Q 1: Someone
stayed at home after hearing the first Adhan (call to prayer) for Jumu`ah (Friday) Prayer waiting to hear the second one,
but did not hear it. When he came to the Masjid (mosque), he found that they had finished Salah (prayer). Therefore, he performed it as Zhuhr (Noon) Prayer. What should this man do?
Salah is one of the pillars of Islam. A person (men) should perform it in congregation. A Muslim person should pay great attention to be in the Masjid before its time in order to attend Takbirat-ul-Ihram (saying: "Allahu Akbar [Allah is the Greatest]" upon starting Prayer) along with the Imam for the five daily Salahs. As for Jumu`ah Prayer, Allah has pointed out the time of attending it. Allah (Exalted be He) says,
O you who believe (Muslims)! When the call is proclaimed for the Salât (prayer) on Friday (Jumu‘ah prayer), come to the remembrance of Allâh [Jumu‘ah religious talk (Khutbah) and Salât (prayer)] and leave off business (and every other thing). That is better for you if you did but know!
If a person does not attend Jumu`ah Prayer with or without an excuse, then he has to perform it as Zhuhr Prayer. They should repent to Allah because they did not attend it (Part No. 8; Page No. 223) if they do not have a legal excuse for that.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.