فَخَسَفْنَا بِهِۦ وَبِدَارِهِ ٱلْأَرْضَ فَمَا كَانَ لَهُۥ مِن فِئَةٍ يَنصُرُونَهُۥ مِن دُونِ ٱللَّهِ وَمَا كَانَ مِنَ ٱلْمُنتَصِرِينَ
29:41.
Important Words:
خسفنا (We caused him to be swallowed up) is formed from خسف. They say خسف المکان i.e. the house fell down or sank into the earth. خسف القمر means, the moon suffered an eclipse. خسف الرجل means, the man became emaciated. خسف فلاناً means, he humbled him and made him to bear a thing which he did not like. خسف اللّٰه الارض بفلان means, God made the earth to sink with such a one and to swallow him up (Lane & Aqrab).
29:41.