The Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), narrates: "When the Prophet (peace and blessings be upon him) set out for Makkah, he would take a ritual bath (ghusl) at the time he intended to enter the state of ihram."
This hadith was narrated from Abd al-Malik bin Marwan (may Allah have mercy on him) only by Salih bin Abi Hassan (may Allah have mercy on him), and from Salih (may Allah have mercy on him) only by Khalid bin Ilyas (may Allah have mercy on him), and Ubaydullah bin Abd al-Majid (may Allah have mercy on him) is alone in narrating it.