thus it is a relative uniqueness. The story of Thābit can be combined with the story of Khārijah, for learning the writing of the Jews necessitates learning their language, and their language is Syriac. However, it is known that their language is Hebrew, so it is possible that Zayd learned both languages due to his need for them." I said: This ḥadīth is similar in meaning to the widely circulated saying: "Whoever learns the language of a people is safe from their deceit," but I do not know of any origin for it in this wording, nor has anyone who compiled the well-known sayings mentioned it, so it seems to have only become famous in later times.

- "Undo your hair and wash yourself. Meaning during menstruation." Narrated by Ibn Abī Shaybah in "al-Muṣannaf" (1/26/1): Wakīʿ informed us from Hishām from his father from ʿĀʾishah that the Prophet (ṣallá Allāhu ʿalayhi wa-sallam) said to her during menstruation: and he mentioned it. It was also recorded by Ibn Mājah (641) through the route of Ibn Abī Shaybah and ʿAlī ibn Muḥammad, who said: Wakīʿ narrated it. I said: This isnād is authentic according to the criteria of al-Bukhārī and Muslim. It is found with them in the midst of ʿĀʾishah's narration about her menstruation during the Farewell Pilgrimage, and that the Prophet (ṣallá Allāhu ʿalayhi wa-sallam) said to her: "Undo your hair, comb it, and refrain from your ʿumrah... the ḥadīth," and it does not include "and wash yourself." This is an authentic addition with this sound isnād, and the context of al-Bukhārī and Muslim implies it, even if it is not explicitly stated. Perhaps this is the reason for al-Sindī's correction of al-Būṣīrī's statement in "al-Zawāʾid": "This isnād's narrators are trustworthy."