Surah 'Abasa 80:6

فَأَنتَ لَهُۥ تَصَدَّىٰ

To him you give attention.

Translation: Saheeh International

Tafsir

to him you do attend tasaddā a variant reading has tassaddā where the original second tā’ of tatasaddā has been assimilated with the sād him you accept and turn your attention to;

Excerpt from Tafsir al-Jalalayn, commentary on 80:6, via Quran.com. The reader has the full commentary and 9 more tafsirs.