[Machine] And the people of Jahiliyyah used to put cotton on the baby's head during the aqiqah ceremony. The Messenger of Allah ﷺ ordered that something else be used in place of the cotton. The scholar, may Allah have mercy on him, said about the hadith of Salman bin 'Amir, "Remove harm from him." It is possible that what is meant by harm is shaving the head, and the prohibition of touching the head with its blood.  

وَكَانَ أَهْلُ الْجَاهِلِيَّةِ يَجْعَلُونَ قُطْنَةً فِي دَمِ الْعَقِيقَةِ وَيَجْعَلُونَهُ عَلَى رَأْسِ الصَّبِيِّ فَأَمَرَ رَسُولُ اللهِ ﷺ أَنْ يُجْعَلَ مَكَانَ الدَّمِ خَلُوقٌ قَالَ الْفَقِيهُ رَحِمَهُ اللهُ وَقَوْلُهُ فِي حَدِيثِ سَلْمَانَ بْنِ عَامِرٍ أَمِيطُوا عَنْهُ الْأَذَى يُحْتَمَلُ أَنْ يَكُونَ الْمُرَادُ بِهِ حَلْقَ الرَّأْسِ وَالنَّهْيَ عَنْ أَنْ يُمَسَّ رَأْسُهُ بِدَمِهَا