Shaving the head is preferrable to cutting the hair, although cutting the hair is permissible
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَزُهَيْرُ بْنُ حَرْبٍ، وَابْنُ، نُمَيْرٍ وَأَبُو كُرَيْبٍ جَمِيعًا عَنِ ابْنِ فُضَيْلٍ، - قَالَ زُهَيْرٌ حَدَّثَنَا مُحَمَّدُ بْنُ فُضَيْلٍ، - حَدَّثَنَا عُمَارَةُ، عَنْ أَبِي زُرْعَةَ، عَنْ أَبِي، هُرَيْرَةَ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " اللَّهُمَّ اغْفِرْ لِلْمُحَلِّقِينَ " . قَالُوا يَا رَسُولَ اللَّهِ وَلِلْمُقَصِّرِينَ قَالَ " اللَّهُمَّ اغْفِرْ لِلْمُحَلِّقِينَ " . قَالُوا يَا رَسُولَ اللَّهِ وَلِلْمُقَصِّرِينَ قَالَ " اللَّهُمَّ اغْفِرْ لِلْمُحَلِّقِينَ " . قَالُوا يَا رَسُولَ اللَّهِ وَلِلْمُقَصِّرِينَ قَالَ " وَلِلْمُقَصِّرِينَ ".
Abu Huraira reported Allah's Messenger (ﷺ) as having said: O Allah, grant pardon to those who got their heads shaved. They (Companions of the Holy Prophet) said: Messenger of Allah, (what about those) who get their hair cut? He said: O Allah, grant pardon to those who get their heads shaved. They said: Messenger of Allah, (what about those) who got their hair clipped? He said: O Allah, grant pardon to those who get their heads shaved. They said: Messenger of Allah, (what about those) who get their hair clipped? He said: (O Allah, grant pardon to) those who get their hair clipped.