COMMENTARY on 54:12
A. Yusuf Ali:

Translation:
And We caused the earth to gush forth with springs, so the waters met (and rose) 5137 to the extent decreed.
Commentary:

5137  The torrents of rain from above combined with the gush of waters from underground springs, and caused a huge Flood which inundated the country (Cf. 11:40 and 23:27 ).