1. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hisham ibn Salim from Abu ‘Abdillah (a.s.) who said: “If one learns (from a Hadith) that for a certain act there is a certain reward and he performs that act, he will receive such reward even if, in fact, it (the Hadith) may not be as such.”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

2. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Muhammad ibn Sinan from ‘Imran al-Za’farani from Muhammad ibn Marwan who has said the following: “I heard abu Ja’far (a.s.) saying, ‘If one learns that there is a certain reward from Allah for a certain act and he performs such act to receive such reward, he will be given the reward even if, in fact, the Hadith may not be as such that has come to him.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.