Ar-Ra'd 13:32

Walaqadi istuhzi-a birusulin min qablikafaamlaytu lillatheena kafaroo thumma akhathtuhumfakayfa kana AAiqab

And already were [other] messengers ridiculed before you, and I extended the time of those who disbelieved; then I seized them, and how [terrible] was My penalty.

Messengers have been mocked at before you, so I let the disbelievers go on for a while. Then I seized them. So, how was My punishment?