Sahih Muslim , Book 7, Hadith 2688 (USC-MSA) ⓘ
'A'isha (Allah be pleased with her) reported: I still seem to see the glistening of the perfume where the hair parted on Allah's Messenger's head as he was in the state of Ihram, and Khalaf (one of the narrators) did not say: As he was in the state of Ihram, but said: That was the perfume of Ihram.
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَسَعِيدُ بْنُ مَنْصُورٍ، وَأَبُو الرَّبِيعِ، وَخَلَفُ بْنُ هِشَامٍ، وَقُتَيْبَةُ، بْنُ سَعِيدٍ قَالَ يَحْيَى أَخْبَرَنَا وَقَالَ الآخَرُونَ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ مَنْصُورٍ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ، - رضى الله عنها - قَالَتْ كَأَنِّي أَنْظُرُ إِلَى وَبِيصِ الطِّيبِ فِي مَفْرِقِ رَسُولِ اللَّهِ صلى الله عليه وسلم وَهُوَ مُحْرِمٌ . وَلَمْ يَقُلْ خَلَفٌ وَهُوَ مُحْرِمٌ . وَلَكِنَّهُ قَالَ وَذَاكَ طِيبُ إِحْرَامِهِ .
also referenced under: Book 15, Hadith 42 (In-Book) & Hadith 1190 (Reference)