326. hadíth
وَقَالَ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ: «مَنِ اِتَّخَذَ شَعْراً فَلْيُحْسِنْ وِلاَيَتَهُ أَوْ لِيَجُزَّهُ.
The Messenger of Allah (saws) said: "Whoever grows their hair should take good care of it or cut it short."