Tradition 20

ما مِـن لَيلَة إلّا وَ مَلَـك المَـوتِ يُنادي يا اَهـلَ القُبُـورِ لِمَـن تَغبِطُونَ اليَومَ وَ قَد عايَنتُم هَولَ المُطّلَعِ, فَيَقُولُ المَوتى اِنّما نَغبِطُ المُؤمِنينَ في مَساجِدِهِم لاِنّهُـم يُصَلّـونَ وَ لا نُصَلّي, وَ يُؤتُونَ الزّكاة وَ لا نُزَكّي, وَ يَصُومُونَ شَهرَ رَمَضانَ وَ لا نَصُومُ, وَ يَتَصَدّقُونَ بِمَا فَضَلَ عَن عِيالِهِم وَ نَحنُ لا نَتَصَـدّقُ ... .

The Holy Prophet (S) said: There comes no night but that the angel of death calls to the dead in the graves and inquires what they regret for today when they have vividly seen (and known) this (the next life). Then the dead will say: “Verily, we regret and envy the believers who are in their mosques and they are praying while we are not; they give alms and we do not; they fast during Ramadan but we do not; they donate in charity what they have more than the need of their family members while we do not ...”