Sahih Muslim | Book 34 | Chapter 6

Narrated by Jarir b. Abdullah
Jarir b. Abdullah reported that some desert Arabs clad in woollen clothes came to Allah's Messenger (may peace be upon him). He saw them in sad plight as they had been hard pressed by need. He (the Holy Prophet) exhorted people to give charity, but they showed some reluctance until (signs) of anger could be seen on his face. Then a person from the Ansar came with a purse containing silver. Then came another person and then other persons followed them in succession until signs of happiness could be seen on his (sacred) face. Thereupon Allah's Messenger (may peace be upon him) said: He who introduced some good practice in Islam which was followed after him (by people) he would be assured of reward like one who followed it, without their rewards being diminished in any respect. And he who introduced some evil practice in Islam which had been followed subsequently (by others), he would be required to bear the burden like that of one who followed this (evil practice) without their's being diminished in any respect.

Narrated by Jarir
Jarir reported that Allah's Messenger (may peace be upon him) delivered an address in which he exhorted people to give charity.

Narrated by Jarir b. 'Abdullah
Jarir b. 'Abdullah reported Allah's Messenger (may peace be upon him) as saying: The servant does not introduce good practice which is followed after him... The rest of the hadith is the same.

Narrated by Jarir
Jarir transmitted this hadith from his father through another chain of narrators.

Narrated by Abu Huraira
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: He who called (people) to righteousness, there would be reward (assured) for him like the rewards of those who adhered to it, without their rewards being diminished in any respect. And he who called (people) to error, he shall have to carry (the burden) of its sin, like those who committed it, without their sins being diminished in any respect.