Surah At-Tariq 86:7

يَخْرُجُ مِنۢ بَيْنِ ٱلصُّلْبِ وَٱلتَّرَآئِبِ

Emerging from between the backbone and the ribs.

Translation: Saheeh International

Tafsir

issuing from between the loins of the man and the breast-bones of the woman.

Excerpt from Tafsir al-Jalalayn, commentary on 86:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.