Sunan an Nasai 2703
The Book of Hajj
أَخْبَرَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ أَنْبَأَنَا شَرِيكٌ، عَنْ أَبِي إِسْحَاقَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ، قَالَتْ كُنْتُ أَرَى وَبِيصَ الطِّيبِ فِي مَفْرِقِ رَسُولِ اللَّهِ صلى الله عليه وسلم بَعْدَ ثَلاَثٍ .
It was narrated that 'Aishah said:'I used to see the glistening of the perfume in the parting of the Messenger of Allah after three (days)
Grading: Abu Ghuddah: Sahih Lighairihi · Al-Albani: Sahih · Zubair Ali Zai: Daif
Text from the public-domain hadith-api dataset. Numbering follows that dataset and can differ by a few from some printed editions — check the wording, not only the number.