Translation:

41. "Or the water of the garden will run off underground so that thou wilt never be able to find it."

Notes (Tafseer)

2381. The punishment was that of thunderbolts (husbanan), but the general meaning of the word includes any punishment by way of a reckoning (hisab), and I think that an earthquake is also implied, as it alters water-courses, diverts channels underground, throws up silt and sand, and covers large areas with ruin.