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.
Whoever utters the [legislated] morning and evening supplications, and then blows into his cupped hands, and thereafter wipes his hands over his body – is doing this something which is legislated?
Abu Bakr al-Anbaaree said that al-Imaam, al-Haafith Abu ‘Ubayd would divide the night into thirds; so he would pray a third of it, and sleep a third of it, and author books [during] a third of it.
I have not eaten my fill for 16 years, except on one occasion; and [on that occasion] I placed my hand in my mouth and induced myself to vomit.
If a man or woman are in a state of janaabah at the time for bed, and they want to sleep, how should they utter the [words of] remembrance for sleep as it is comprised of verses [of the Qur.aan] and supplications?
We visited al-Hasan al-Basree, and [found him] asleep. By his head was a basket, and we foraged inside and found bread and fruit, so we began to eat.