Sunnah pertaining to toilet

It is taken from the following hadith. Prophet Muhammad pbuh used to do some things with right hand and other with left. This is drived from the following hadith.

Hadith

وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى التَّمِيمِيُّ، أَخْبَرَنَا أَبُو الأَحْوَصِ، عَنْ أَشْعَثَ، عَنْ أَبِيهِ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ إِنْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم لَيُحِبُّ التَّيَمُّنَ فِي طُهُورِهِ إِذَا تَطَهَّرَ وَفِي تَرَجُّلِهِ إِذَا تَرَجَّلَ وَفِي انْتِعَالِهِ إِذَا انْتَعَلَ ‏.‏

A'isha reported:

The Messenger of Allah (ﷺ) loved to start from the right-hand side for performing ablution, for combing (the hair) and wearing the shoes.

Sahih Muslim 268a
In-book : Book 2, Hadith 83
USC-MSA web (English) : Book 2, Hadith 514  (deprecated)