If there is a fear of the mosque's belongings being stolen or lost in the event of not locking the mosque's door outside of prayer times, then it is permissible to lock it. (Aham Masail / Vol: 1 / Pg: 248)
The king asked the slave:
"Why are you leaving your job?"
The slave replied:
"There are five reasons."
"The first reason is that you keep sitting while I remain standing before you, whereas the One Whom I worship commands me to sit even during His prayer."
"The second reason is that when...