Salaah

Performing salaah while having the urge to relieve oneself

Q:

1. Could you please tell me what to do when I come across a situation where I have to relieve myself (in the bathroom) at that time of salaah (especially fajr and magrib). Should I control myself and make wudhu and go to the masjid for salah or should I go to the bathroom and then go to the masjid and read salah without jamat?

2. What are the situations in which delaying salah is permissible, because when it comes to salah and I have a situation like that, then I get tensed and get a headache and my heart starts beating fast. 

Making up for salaahs missed while one was an apostate

Q:

1. As a youth, someone made an oath to not do something and they did it, they then fasted 3 days to expiate the oath (as they were unable to do anything else). Later that person apostatised from Islam but came back to the Deen. Do they have to redo the expiation for the oath broken? No oath was made since that time. 

2. Also, in terms of salah missed, are salahs missed over years must be made up by someone who Apostatised but later came back to the Deen?

Qualities of an Imaam

Q:

1. I would like to know what are the attributes of a person being imam and leading salaah?

2. Can a haafidh who is known to exploit and be dishonest or is a substance abuser lead salaah; fardh or taraweeh salaah?