They will do you no harm, barring a trifling annoyance... (Qur'an 3: 111)

...and be not distressed because of what they plot. (Qur'an 16: 127)

...and harm them not. And put your trust in Allah... (Qur'an 33: 48)

...but Allah cleared him fMoosa] of that which they alleged... (Qur'an 33: 69)

An Arab poet said:

"The vast ocean feels no harm,
When the boy pitches into it a rock."

In a hadith that has a hasan grading, the Prophet (bpuh) said: "Do not speak ill to me of my Companions, for verily, I would love to leave you with a sound breast."