[Machine] Did we not make the earth a resting place for the living and the dead? This is mentioned by Mujahid and Ibn Musayyib that they bury it like waste material. And it is narrated from Malik ibn Yakhamir that he said, "I saw Mu'adh ibn Jabal killing lice and fleas in prayer." And Hasan said, "There is no harm in killing lice in prayer, but one should not play around."  

{أَلَمْ نَجْعَلِ الْأَرْضَ كِفَاتًا أَحْيَاءً وَأَمْوَاتًا} [المرسلات 26] وَيُذْكَرُ نَحْوُ هَذَا عَنْ مُجَاهِدٍ وَعَنِ ابْنِ الْمُسَيِّبِ يَدْفِنُهَا كَالنُّخَامَةِ وَرُوِّينَا عَنْ مَالِكِ بْنِ يَخَامِرَ أَنَّهُ قَالَ رَأَيْتُ مُعَاذَ بْنَ جَبَلٍ يَقْتُلُ الْقَمْلَةَ وَالْبَرَاغِيثَ فِي الصَّلَاةِ وَعَنِ الْحَسَنِ قَالَ لَا بَأْسَ بِقَتْلِ الْقَمْلِ فِي الصَّلَاةِ وَلَكِنْ لَا يَعْبَثُ