Kitab-i-Aqdas/Elder108

One should not be moving his tongue before people as he walks on the streets and in the markets. Whoever desires to make mention of God should do so in the places built for remembrance of God or in his own house. This is much nearer to sincerity and piety. Thus has the Sun of Wisdom risen from the horizon of the Explanation (al-Bayan). Blessed are those who do (these things).