The word(s) "خلفك" appears in 3 verse(s) in Quran.

(1) قَالُوا أُوذِينَا مِن قَبْلِ أَن تَأْتِيَنَا وَمِن بَعْدِ مَا جِئْتَنَا ۚ قَالَ عَسَىٰ رَبُّكُمْ أَن يُهْلِكَ عَدُوَّكُمْ وَيَسْتَخْلِفَكُمْ فِي الْأَرْضِ فَيَنظُرَ كَيْفَ تَعْمَلُونَ

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #129)
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(2) فَالْيَوْمَ نُنَجِّيكَ بِبَدَنِكَ لِتَكُونَ لِمَنْ خَلْفَكَ آيَةً ۚ وَإِنَّ كَثِيرًا مِّنَ النَّاسِ عَنْ آيَاتِنَا لَغَافِلُونَ

(سورة يونس, Yunus, Chapter #10, Verse #92)
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(3) وَإِذَا قِيلَ لَهُمُ اتَّقُوا مَا بَيْنَ أَيْدِيكُمْ وَمَا خَلْفَكُمْ لَعَلَّكُمْ تُرْحَمُونَ

(سورة يس, Yaseen, Chapter #36, Verse #45)
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