the Prophet ﷺ forbade qaza' which means that the head of a boy is shaved and a lock is left.
أَنَّ النَّبِيَّ ﷺ نَهَى عَنِ الْقَزَعِ وَهُوَ أَنْ يُحْلَقَ رَأْسُ الصَّبِيِّ فَتُتْرَكَ لَهُ ذُؤَابَةٌ
The Messenger of Allah ﷺ forbade qaza'. Qaza' means having part of a boy's head shaved and leaving part unshaven.
نَهَى رَسُولُ اللَّهِ ﷺ عَنِ الْقَزَعِ وَالْقَزَعُ أَنْ يُحْلَقَ رَأْسُ الصَّبِيِّ فَيُتْرَكَ بَعْضُ شَعْرِهِ
[Machine] The translation of the given Arabic sentence into English is:
"The Messenger of Allah ﷺ forbade shaving part of the child's head and leaving patches of hair."
أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنِ الْقَزَعِ قَالَ حَمَّادٌ تَفْسِيرُهُ أَنْ يُحْلَقَ بَعْضُ رَأْسِ الصَّبِيِّ وَيُتْرَكَ مِنْهُ ذُؤَابَةٌ
ذِكْرُ الزَّجْرِ عَنْ أَنْ يُحْلَقَ وَسَطُ رَأْسِ الصَّبِيِّ وَيُتْرَكَ حَوَالَيْهِ عَلَيْهَا الشَّعْرُ
[Machine] The Prophet ﷺ has forbidden shaving off the head of a baby completely and leaving some of his hair.
عَنِ النَّبِيِّ ﷺ «أَنَّهُ نَهَى عَنِ الْقَزَعِ أَنْ يُحْلَقَ رَأْسُ الصَّبِيِّ وَيُتْرَكَ بَعْضُ شَعْرِهِ»