The word(s) "مَسْئُولًا" appears in 4 verse(s) in Quran.

(1) وَلَا تَقْرَبُوا مَالَ الْيَتِيمِ إِلَّا بِالَّتِي هِيَ أَحْسَنُ حَتَّىٰ يَبْلُغَ أَشُدَّهُ ۚ وَأَوْفُوا بِالْعَهْدِ ۖ إِنَّ الْعَهْدَ كَانَ مَسْئُولًا

(سورة الإسراء, Al-Israa, Chapter #17, Verse #34)
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(2) وَلَا تَقْفُ مَا لَيْسَ لَكَ بِهِ عِلْمٌ ۚ إِنَّ السَّمْعَ وَالْبَصَرَ وَالْفُؤَادَ كُلُّ أُولَـٰئِكَ كَانَ عَنْهُ مَسْئُولًا

(سورة الإسراء, Al-Israa, Chapter #17, Verse #36)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(3) لَّهُمْ فِيهَا مَا يَشَاءُونَ خَالِدِينَ ۚ كَانَ عَلَىٰ رَبِّكَ وَعْدًا مَّسْئُولًا

(سورة الفرقان, Al-Furqaan, Chapter #25, Verse #16)
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(4) وَلَقَدْ كَانُوا عَاهَدُوا اللَّهَ مِن قَبْلُ لَا يُوَلُّونَ الْأَدْبَارَ ۚ وَكَانَ عَهْدُ اللَّهِ مَسْئُولًا

(سورة الأحزاب, Al-Ahzaab, Chapter #33, Verse #15)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)