It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Make it your practice to use ithmid (antimony kohl), for it makes the hair grow and sharpens the eyesight." This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.

Amr bin Yahya bin Umarah bin Abi Hasan informed; he said: Maryam bint Iyas bin al-Bukayr (who was the daughter of a Companion of the Prophet, peace and blessings be upon him) narrated to me; she narrates from one of the wives of the Prophet (peace and blessings be upon him), and I think she was Zaynab (may Allah be pleased with her), that the Prophet (peace and blessings be upon him) came to her and asked: "Do you have any dharirah (a fragrant powder)?" She said: Yes. So he (peace and blessings be upon him) called for it and placed it on a pimple that had appeared between two of the toes of his foot, then he made this supplication: 'Allahumma mutfi'a al-kabir, wa mukabbira al-saghir, atfi'ha 'anni' (O Allah, the One who extinguishes the big and makes the small grow big, extinguish it from me). And so the pimple disappeared. This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.