Narrated Nafi', 'Whenever Ibn 'Umar finished his morning Salat at Dhul-Hulaifa he would get his Rahila (mount) prepared. Then, he would ride on it, and after it had stood up straight (ready to set out), he would face Al-Qiblah (the Ka,bah at Makkah) while sitting (on his mount) and recite Talbiya. When he had reached the boundaries of the Haram (or Makkah), he would stop recitation of Talbiya till he reached Dhi-Tuwa (near Makkah) where he would pass the night till it was dawn. After offering the morning Salat, he would take a bath. He claimed that Messenger of Allah ﷺ had done the same.  

أَنَّ رَسُولَ اللَّهِ ﷺ فَعَلَ ذَلِكَ  

Whenever Ibn ʿUmar intended to go to Mecca he used to oil himself with a sort of oil that had no pleasant smell, then he would go to the Mosque of Al-Hulaita and offer the prayer, and then ride. When he mounted well on his Mount and the Mount stood up straight, he would proclaim the intention of assuming Ihram, and he used to say that he had seen the Prophet ﷺ doing the same.  

هَكَذَا رَأَيْتُ النَّبِيَّ ﷺ يَفْعَلُ