English translation
2061. It was narrated from Umm Salamah that the Messenger of Allāh ﷺ swore to keep away from some of his wives for a month. On the twenty-ninth day, in the evening or the morning, it was said: "O Messenger of Allāh, only twenty-nine days have passed." He said: "The month is twenty-nine days." (Sahih)
