Surah 26. Ash-Shuara, Ayah 171

As is evident from 7:83 , 11:81 , 27:57 and {29:32-33}, the old woman was Lots' wife - a native of Sodom - who chose to remain with her own people instead of accompanying her husband, whom she thus betrayed (cf. also 66:10 ).

 Lot’s wife, who betrayed her husband.

This was Lut's wife, who lingered behind and was among those who perished, See n. 1051 to vii. 83.