[13].Surah Ar-Ra'd [The Thunder] : Ayat 32

Ayat 32. And indeed (many) Messengers were mocked at before you (O Muhammad  [SAWW](PBUH), but I granted respite to those who disbelieved, and finally I punished them. Then how (terrible) was My Punishment!  

Hazrat Abu Musa (May Allah bepleased with him) reported: Messenger of Allah  [SAWW](PBUH) said, "Verily, Allah gives respite to the oppressor. But when He seizes him, He does not let him escape.'' Then he (PBUH)) recited, "Such is the Seizure of your Rubb when He seizes the (population of) towns while they are doing wrong. Verily, His Seizure is painful (and) severe". (11:102). [Al-Bukhari Book 06, Chapter 60, Hadith # 208]. 

Lesson : as mentioned above in Surah Ar-Ra'd Ayat 32. "and finally I punished them. Then how (terrible) was My Punishment!" This Hadith also highlights that One should not take the respite for exemption because no one knows when respite granted by Him will come to an end and punishment will follow.