Surah Yusuf 12:27

وَإِن كَانَ قَمِيصُهُۥ قُدَّ مِن دُبُرٍ فَكَذَبَتْ وَهُوَ مِنَ ٱلصَّـٰدِقِينَ

But if his shirt is torn from the back, then she has lied, and he is of the truthful."

Translation: Saheeh International

Tafsir

but if his shirt has been torn from behind then she has lied and he is of the truthful’.

Excerpt from Tafsir al-Jalalayn, commentary on 12:27, via Quran.com. The reader has the full commentary and 9 more tafsirs.