Divorce
Ṣaḥīḥ al-Bukhārī 5343
وَلاَ تَمَسَّ طِيبًا إِلاَّ أَدْنَى طُهْرِهَا إِذَا طَهُرَتْ، نُبْذَةً مِنْ قُسْطٍ وَأَظْفَارٍ
walā tamassa ṭīban illā adnā ṭuhrihā idhā ṭahurat, nubdhatan min qusṭin wa-aẓfārin
Transliteration generated from the Arabic vowel marks
The full narration
Um 'Atiyya added:The Prophet (ﷺ) said, "She should not use perfume except when she becomes clean from her menses whereupon she can use Qust, and Azfar (two kinds of incense)
Source
Ṣaḥīḥ al-Bukhārī · 5343
Ṣaḥīḥ