Hawzah News Agency – The merciful prophet of Islam (pbuh) says:
نِيَّةُ المُؤمنِ أبلَغُ مِن عَمَلِهِ، وكذلكَ الفاجِرُ .
'The intention of a believer is more effective than his action, and same with the evildoer.'
Source: Amali al-Tusi, p. 454, no. 1013