Commentary explaining the meaning of the ayahs. One passage often covers several ayahs, so neighbouring ayahs can show the same text.
English Al-Mukhtasar tafsir for Surah Adh-Dhariyat — Ayah 51
وَلَا تَجۡعَلُواْ مَعَ ٱللَّهِ إِلَٰهًا ءَاخَرَۖ إِنِّي لَكُم مِّنۡهُ نَذِيرٞ مُّبِينٞ ٥١
And do not make alongside Allah another deity to worship besides Him. I am a clear warner to you.