At afternoon prayer time they keep sitting (in meditation), and they go to sleep after nightfall. They do not beg for alms from any person even in acute starvation. They have not accustomed their belly with stealthily or illegitimately acquired dainties. These nomads have trained themselves from their childhood as if by means of medicine to endure hardships (including hunger) with absolute patience.
So be patient with admirable patience . (5, Al-Maarij).

In the afternoon, find them mediating at sunset they sleep,
Though starving they ask not for alms from any one,
They have not accustomed themselves to dainty dishes,
For they have taken the dose of silence.