“Abu ‘Abd Allah (a.s.), has said that one who normally attends al-Hajj every year, then he lags behind and does not go for al-Hajj one year, the angels on land say to those in the mountains, ‘We miss hearing the voice of so and so.’ They then say, ‘Allow us to search for him.’ They search but do not find him and they say, “O Allah, if debts have kept him behind, pay them off for him; if illness has kept him from performing, grant him good health; if it is poverty, grant him wealth; if it is prison, grant him freedom; if a preoccupation, please complete it for him.’” People pray for themselves; they (angels) pray for those who have remained behind.’”