1. Purification
١۔ كِتَابُ الطَّهَارَةِ
"When any one of you urinates, let him not hold his penis in his right hand." (Using translation from Nasāʾī 24)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ «إِذَا بَالَ أَحَدُكُمْ فَلَا يَأْخُذْ ذَكَرَهُ بِيَمِينِهِ»
When anyone amongst you enters the privy he should not touch his penis with his right hand. (Using translation from Muslim 267b)
قَالَ رَسُولُ اللهِ ﷺ «إِذَا دَخَلَ أَحَدُكُمُ الْخَلَاءَ فَلَا يَمَسَّ ذَكَرَهُ بِيَمِينِهِ»