Uwais al-Qarni (594-656 CE) was an Arab devotee and contemporary of the Prophet Mohammed, but because he did not want to leave his aged mother uncared for, was never able to travel to meet the Prophet physically.

It is reported that once somebody asked Uwais, "How are you?”

Uwais replied, “What would you expect of him who does not know, when he gets up in the morning, whether he will survive until evening?”