Conceal Faults of Your Fellow Muslim

Imam Baqir (a.s) said: 'It is compulsory for every Muslim to conceal even seventy great faults of his fellow Muslims (in order to save his prestige).' (His faults should be dealt with personally but not be spread among the members of society).

Bihar-ul-Anwar, vol. 74, p. 301

Source: al-shia.org

Other links:

Righteousness of Intentions

Quran, a source of advice

Control your temper

True worship

Fatal Vices

Laziness

Piety