[Machine] The Prophet ﷺ said, "When one of you enters the restroom, do not use his right hand for istinja and do not touch his private parts with his right hand." This hadith is narrated by Hisham al-Dastuwa'i in the two authentic narrations and is also reported by Salman and Abu Hurairah.
أَنَّ النَّبِيَّ ﷺ قَالَ إِذَا أَتَى أَحَدُكُمُ الْخَلَاءَ فَلَا يَسْتَنْجِيَنَّ بِيَمِينِهِ وَلَا يَمَسَّ ذَكَرَهُ بِيَمِينِهِ مُخَرَّجٌ فِي الصَّحِيحَيْنِ مِنْ حَدِيثِ هِشَامٍ الدَّسْتُوَائِيِّ وَرُوِّينَاهُ مِنْ حَدِيثِ سَلْمَانَ وَأَبِي هُرَيْرَةَ