Surah Al-A'raf 7:16

قَالَ فَبِمَآ أَغْوَيْتَنِى لَأَقْعُدَنَّ لَهُمْ صِرَٰطَكَ ٱلْمُسْتَقِيمَ

[Satan] said, "Because You have put me in error, I will surely sit in wait for them [i.e., mankind] on Your straight path.

Translation: Saheeh International

Tafsir

Said he ‘Now because You have sent me astray fa-bi-mā aghwaytanī means bi-ighwā’ik ‘for Your sending me astray’ the bā’ is for oaths and the response of the oath is the following verily I shall sit in ambush for them that is for the Children of Adam on Your straight path that is on the path that leads to You.

Excerpt from Tafsir al-Jalalayn, commentary on 7:16, via Quran.com. The reader has the full commentary and 9 more tafsirs.