﴿ قَالَ تَزْرَعُونَ سَبْعَ سِنِينَ دَأَبًۭا فَمَا حَصَدتُّمْ فَذَرُوهُ فِى سُنۢبُلِهِۦٓ إِلَّا قَلِيلًۭا مِّمَّا تَأْكُلُونَ ﴾

“[Joseph] replied: "You shall sow for seven years as usual; but let all [the grain] that you harvest remain [untouched] in its ear, excepting only a little, whereof you may eat:”

Please check ayah 12:49 for complete tafsir.