It was narrated from 'Aishah that the Prophet (ﷺ) said:
"When the time of menstruation comes, stop praying, and when it goes, perform Ghusl." (RU)
English reference (RU): Vol. 1, Book 1, Hadith 202 (RU)
Arabic reference (RU): Book 1, Hadith 203 (RU)