1531. hadíth
4746 - وَ قَالَ أَمِيرُ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ : "يُرَبَّى اَلصَّبِيُّ سَبْعاً وَ يُؤَدَّبُ سَبْعاً وَ يُسْتَخْدَمُ سَبْعاً وَ مُنْتَهَى طُولِهِ فِي ثَلاَثٍ وَ عِشْرِينَ سَنَةً وَ عَقْلِهِ فِي خَمْسٍ وَ ثَلاَثِينَ سَنَةً وَ مَا كَانَ بَعْدَ ذَلِكَ فَبِالتَّجَارِبِ".
Hadith.4746 - The Commander of the Faithful, Imam Ali ibn Abi Talib (as) said: "A child should be nurtured for seven years, disciplined for seven years, and then employed (given responsibility) for seven years. His physical growth reaches its peak at twenty-three years, and his intellect matures at thirty-five years. Whatever comes after that is through experiences."