وَيُنْدَبُ الِاغْتِسَالُ فِي سِتَّةَ عَشَرَ شَيْئًا: لِمَنْ أَسْلَمَ طَاهِرًا، وَلِمَنْ بَلَغَ بِالسِّنِّ، وَلِمَنْ أَفَاقَ مِنْ جُنُونٍ، وَعِنْدَ حِجَامَةٍ، وَغَسْلِ مَيِّتٍ، وَفِي لَيْلَةِ بَرَاءَةٍ، وَلَيْلَةِ الْقَدْرِ إِذَا رَآهَا، وَلِدُخُولِ مَدِينَةِ سَيِّدِنَا النَّبِيِّ ﷺ
1. A person who accepts Islam while already physically/ritually pure of a cause requiring Ghusl.
2. Reaching puberty by age.
3. Recovering from insanity.
4. After cupping.
5. After washing a deceased person.
6. The night of mid-Sha'ban.
7. Laylat al-Qadr when one recognizes/experiences it as stated by the text.
8. Entering the city of the Prophet ﷺ.