how many times a day is the muslim call to prayer
Salah times The five daily prayers are obligatory (fard) and they are performed at times determined essentially by the position of the Sun in the sky. Hence, salah times vary at different locations on the Earth.
Al-Nas The sura takes its name from the word "people" or "mankind"
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.
Time 100 Barack Obama has appeared on the list 11 times, the most of any person.