[Regarding] the Witr [prayer, then] its time begins from the moment [you] finish the ‘Ishaa prayer…
There is not a people who fail to admonish those among them who are negligent in prayer, except that their first punishment will be a reduction in their sustenance.
Missing the Fajr prayer and sleeping during its time instead of praying it, is from the greatest of the prohibited acts, and from the acts of the hypocrites.
We see some people when they need to break [away from] their prayer [short] for some emergency, or to join [the congregation when] the imaam [is about to start the prayer], or if they have invalidated their prayer – they do the tasleem. So is this act [of theirs] correct, or will the intention [to terminate the prayer] suffice?