Surah 37. As-Saffat, Ayah 135

As is evident from 7:83 and 11:81 , that woman was Lot's wife, who had chosen to stay behind (cf. note [66] on 7:83 ).

 Lot’s wife.

Cf. vii. 83, and n. 1051. Lot's wife had no faith: she lagged behind, and perished in the general ruin.