Imam As-Sadiq (a.s.) said:
"لا تُرّاءِ بِعَمَلِكَ مَنْ لاَ يُحْيي وَ لا يُمِيْتُ وَ لايُغْنِى عَنْكَ شَيْئاً"
Do not do your good deeds for affectation and trying to impress people . You should realize that people have no power on life or death nor can they solve any problem for you.1
All appearances of the life of those who have gotten used to pretension and hypocrisy become hollow and empty. They are contented with aspects of life that have little substance and spiritual meaning, leaning instead towards vain imaginations, illusions and empty religious rituals . They gain nothing save appearances! For this reason, Islam strongly criticizes this ugly attribute and says that your destiny in not under control of these people, so why this facade?