Is not considering the one who intentionally delays the prayer to be an apostate a form of leniency (rukhsa)? And is there a difference in ruling between one who intentionally delays the prayer and one who delays it due to errors that cause its delay, such as staying up late or being preoccupied? And what is the ruling on one who delayed the prayer until only two minutes remained before its time expired, due to watching a program on his phone?

Intentionally delaying prayer until its time expires is a major sin. Error is not equivalent to intention; thus, whoever misses a prayer due to forgetfulness or sleep incurs no sin. However, whoever occupies himself with worldly matters until the prayer time has passed, without forgetting it, or intentionally stays up late knowing that he will miss the prayer time, is sinful. Prayer becomes obligatory at any part of its designated time. Scholars differ regarding the minimum amount of time required to catch a prayer: some believe it is caught by uttering the opening takbir (takbirat al-ihram), while others believe it is caught by performing one rak'ah. A Muslim should be keen on performing prayer at its prescribed time and abandon whatever causes its delay.