Hadithcore
Bulugh al-Maram, 112

Narrated ‘Aisha (rad):

Allah’s Messenger (ﷺ) used to take a bath from four things; after sexual intercourse, on Fridays, after extracting blood from his body and after washing a dead body. [Reported by Abu Da’ud and Ibn Khuzaima graded it Sahih (sound)]

وَعَنْ عَائِشَةَ رَضِيَ اَللَّهُ عَنْهَا قَالَتْ: { كَانَ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-يَغْتَسِلُ مِنْ أَرْبَعٍ: مِنْ اَلْجَنَابَةِ, وَيَوْمَ اَلْجُمُعَةِ, وَمِنْ اَلْحِجَامَةِ, وَمِنْ غُسْلِ اَلْمَيِّتِ } رَوَاهُ أَبُو دَاوُدَ, وَصَحَّحَهُ اِبْنُ خُزَيْمَة َ [1]‏ .‏

References2 variants
In-Book Reference
Book 1, Hadith 135
English Reference
Book 1, Hadith 120