Surah Yusuf 12:48
ثُمَّ يَأْتِى مِنۢ بَعْدِ ذَٰلِكَ سَبْعٌ شِدَادٌ يَأْكُلْنَ مَا قَدَّمْتُمْ لَهُنَّ إِلَّا قَلِيلًا مِّمَّا تُحْصِنُونَ
Then will come after that seven difficult [years] which will consume what you advanced [i.e., saved] for them, except a little from which you will store.
Translation: Saheeh International
Tafsir
Then after that in other words after the seven fertile years there shall come seven hard barren and unyielding years — the interpretation of the seven lean ones — which shall devour what you set aside for them of grain sown during the fertile years in other words you shall eat all this during these seven hard years …
Excerpt from Tafsir al-Jalalayn, commentary on 12:48, via Quran.com. The reader has the full commentary and 9 more tafsirs.