Al-Ahzab 33:30

Ya nisaa annabiyyi manya/ti minkunna bifahishatin mubayyinatin yudaAAaflaha alAAathabu diAAfayni wakana thalikaAAala Allahi yaseera

O wives of the Prophet, whoever of you should commit a clear immorality - for her the punishment would be doubled two fold, and ever is that, for Allāh, easy.

O wives of the Prophet, whoever from among you will commit a clearly shameful act, the punishment will be doubled for her; and it is easy for Allah to do so.