Hadith 203
´It was narrated from Mundhir bin Jarir that his father said:` "The Messenger of Allah said: 'Whoever introduces a good practice that is followed, he will receive its reward and a reward equivalent to that of those who follow it, without that detracting from their reward in their slightest. And whoever introduces a bad practice that is followed, he will receive its sin and a burden of sin equivalent to that of those who follow it, without that detracting from their burden in the slightest.'"
Hadith 2503
´It was narrated that Mundhir bin Jarir said:` “I was with my father in Bawazij and the cows came back in the evening. He saw a cow did not recognize it. He said: 'What is this?' He said: 'A cow that joined the herd.' And he issued orders that it be driven away until it disappeared from view. Then he said: 'I heard the Messenger of Allah (ﷺ) say: “No one gives refuge to a stray animal but one who is also astray.”