Musnad Ahmad 107:1

Rawh narrated to us, Ibn Jurayj narrated to us, he said: Muzahim ibn Abi Muzahim informed me, from Abd al-Aziz ibn Abd Allah, from Muhrish al-Ka'bi: "That the Prophet, may Allah bless him and grant him peace, went out at night from al-Ji'ranah when evening came, in the state of Umrah. He entered Makkah at night and performed his Umrah, then he went out before the night was over. He reached al-Ji'ranah in the morning as one who had spent the night there. When the sun passed its zenith, he went out from al-Ji'ranah through the valley of Sarif, until he came by the road, the road to Madinah, at Sarif." Muhrish said: "That is why his Umrah was hidden from many people."