مُوَطَّأُ مَالِكٍ
Muwatta Malik 1274
Divorce
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ أُمَّ سَلَمَةَ، زَوْجَ النَّبِيِّ صلى الله عليه وسلم كَانَتْ تَقُولُ تَجْمَعُ الْحَادُّ رَأْسَهَا بِالسِّدْرِ وَالزَّيْتِ .
Yahya related to me from Malik that he had heard that Umm Salama, the wife of the Prophet, (ﷺ), said, "A mourning woman can rub her head with lotus leaves and olive oil.''
Arabic/English book reference: Book 29, Hadith 109