«من استسن خيرا فاستن به كان له أجره كاملا ومن أجور من استن به ولا ينتقص من أجورهم شيئا ومن استن سنة سيئة فاستن به فعليه وزره كاملا ومن أوزار الذين استنوا به ولا ينتقص من أوزارهم شيئا»
The Prophet (peace and blessings be upon him) said:
"Whoever establishes a good practice and it is acted upon, he will have its full reward, and he will also have the reward of those who act upon it, without anything being reduced from their reward; and whoever establishes an evil practice and it is acted upon, he will bear its full sin, and he will also bear the sin of those who act upon it, without anything being reduced from their sin."
Hadith Referenceصحیح الجامع الصغیر / حرف الميم / 6014