Hadith 8:2179
Abu Bakr narrated to us, he said: Shareek narrated to us, from Ammar, from Muslim al-Batin, that al-Hasan ibn Ali, when he entered into Ihram, would anoint himself with oil, and he would anoint his companions with perfume, or he would anoint himself with perfume.
حدثنا أبو بكر قال حدثنا شريك عن عمار عن مسلم البطين أن الحسن بن علي كان إذا أحرم أدهن بالزيت وأدهن أصحابه بالطيب أو يدهن بالطيب