(37) باب هِجْرَةِ الْحَبَشَةِ
Narrated Um Khalid bint Khalid:
When I came from Ethiopia (to Medina), I was a young girl. Allah's Messenger (ﷺ) made me wear a sheet having marks on it. Allah's Messenger (ﷺ) was rubbing those marks with his hands saying, "Sanah! Sanah!" (i.e. good, good).
Reference: Sahih al-Bukhari 3874
In-book reference: Book 63, Hadith 100
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 58, Hadith 214