Al-Kāfi - Volume 4 > Matters Permissible in the State of al-’ Ihram after Shower, Such as Perfume, Hunting and Others Before Talbiyah (Here I am O Lord, to obey Your command)
Hadith #5

5ـ أَحْمَدُ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنِ الْحُسَيْنِ بْنِ أَبِي الْعَلاءِ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلاَم) عَنِ الرَّجُلِ الْمُحْرِمِ يَدَّهِنُ بَعْدَ الْغُسْلِ قَالَ نَعَمْ فَادَّهَنَّا عِنْدَهُ بِسَلِيخَةِ بَانٍ وَذَكَرَ أَنَّ أَبَاهُ كَانَ يَدَّهِنُ بَعْدَ مَا يَغْتَسِلُ لِلإِحْرَامِ وَأَنَّهُ يَدَّهِنُ بِالدُّهْنِ مَا لَمْ يَكُنْ غَالِيَةً أَوْ دُهْناً فِيهِ مِسْكٌ أَوْ عَنْبَرٌ.

5. Ahmad has narrated from Ali ibn al-Hakam from al-Husayn abu al-‘Ala’ who has said the following: “I once asked abu ‘Abd Allah, ‘Alayhi al-Salam, about a man who is in the state of Ihram and applies oil after Ghusl (bath). He (the Imam) said, ‘Yes, it is permissible.’ We applied cassia-bark in his presence and he (the Imam) mentioned that his father would apply oil after Ghusl (bath) for Ihram and he would apply oil as long as it was not costly or mixed with musk or ambergris.’”