And in the narration of al-Bukhari narrated by 'Aishah (RA) is:

"This is a practice of the Jews."

وَفِي اَلْبُخَارِيِّ : عَنْ عَائِشَةَ ‏- رَضِيَ اَللَّهُ عَنْهَا‏- أَنَّ ذَلِكَ فِعْلُ اَلْيَهُودِ [1]‏