How many people have caused misery to their own children

  قال تعالى فى سورة التحريم{ يَا أَيُّهَا الَّذِينَ آمَنُوا قُوا أَنفُسَكُمْ وَأَهْلِيكُمْ نَاراً وَقُودُهَا النَّاسُ وَالْحِجَارَةُ عَلَيْهَا مَلَائِكَةٌ غِلَاظٌ شِدَادٌ لَا يَعْصُونَ اللَّهَ مَا أَمَرَهُمْ وَيَفْعَلُونَ مَا يُؤْمَرُونَ} 6

Surah At-Tahrim

O ye who believe! Ward off from yourselves and your families a Fire whereof the fuel is men and stones, over which are set angels strong, severe, who resist not Allah in that which He commandeth them, but do that which they are commanded. (6)

Ibn al-Qayyim:

“How many people have caused misery to their own children, the apples of their eyes, in this world and in the Hereafter, by neglecting them, not disciplining them, encouraging them to follow their whims and desires, thinking that they were honoring them when they were in fact humiliating them, that they were being merciful to them when in fact they were wronging them. They have not benefited from having a child, and they have made the child lose his share in this world and in the Hereafter. If you think about the corruption of children you will see that in most cases it is because of the parents.”

(Tuhfat al-Mawlood, p. 146)