Aslam, the freed slave of Sayyiduna Umar (may Allah be pleased with him), said that Sayyiduna Umar (may Allah be pleased with him) noticed the smell of perfume while he was at the tree, and said: Where is this perfume coming from? Sayyiduna Mu'awiyah (may Allah be pleased with him) said: O Commander of the Believers, it is coming from me. Sayyiduna Umar (may Allah be pleased with him) said: From you! Sayyiduna Mu'awiyah (may Allah be pleased with him) said: O Commander of the Believers, Umm Habibah (may Allah be pleased with her) applied perfume to me. Sayyiduna Umar (may Allah be pleased with him) said: I order you to go back and wash it off.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8967