Hadith #5089 (Sunan al-Nasa'i)
Book: The Book of Adornment
Narrator(s): Aisha bint Abi Bakr, Amr bin Mnswr al-Nsa'iy عمرو بن منصور النسائي أبو سعيد, Mty' bin Maymun al-Nbry مطيع بن ميمون العنبري أبو سعيد البصري, Sfyh bint Asmh صفية بنت عصمة

“The Messenger of Allah  said: ‘The best things with which you can change gray hair are Henna and Katam.'”

Source: https://parallelquran.com/hadith/sunan-al-nasai-5089/

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Hadith #4165 (Sunan Abi Dawud)
Book: Combing the Hair (Kitab Al-Tarajjul)
Narrator(s): Aisha bint Abi Bakr, Khalid bin 'Abdur Rahman خالد بن عبد الرحمن بن بكير, Mty' bin Maymun al-Nbry مطيع بن ميمون العنبري أبو سعيد البصري, Sfyh bint Asmh صفية بنت عصمة
Grade: Da'if

When Hind, daughter of Utbah, said: Prophet of Allah, accept my allegiance, he replied; I shall not accept your allegiance till you make a difference to the palms of your hands; for they look like the paws of a beast of prey.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-4165/