Surah Al-A'raf 7:135
فَلَمَّا كَشَفْنَا عَنْهُمُ ٱلرِّجْزَ إِلَىٰٓ أَجَلٍ هُم بَـٰلِغُوهُ إِذَا هُمْ يَنكُثُونَ
But when We removed the punishment from them until a term which they were to reach, then at once they broke their word.
Translation: Saheeh International
Tafsir
But when We removed through the supplication of Moses the terror from them to a term which they should reach lo! they were already reneging breaking their covenant and persisting in their disbelief.
Excerpt from Tafsir al-Jalalayn, commentary on 7:135, via Quran.com. The reader has the full commentary and 9 more tafsirs.