حَدَّثَنَا النُّفَيْلِيُّ، وَقُتَيْبَةُ، قَالاَ حَدَّثَنَا دَاوُدُ بْنُ عَبْدِ الرَّحْمَنِ الْعَطَّارُ، عَنْ عَمْرِو بْنِ دِينَارٍ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ اعْتَمَرَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَرْبَعَ عُمَرٍ عُمْرَةَ الْحُدَيْبِيَةِ وَالثَّانِيَةَ حِينَ تَوَاطَئُوا عَلَى عُمْرَةٍ مِنْ قَابِلٍ وَالثَّالِثَةَ مِنَ الْجِعْرَانَةِ وَالرَّابِعَةَ الَّتِي قَرَنَ مَعَ حَجَّتِهِ ‏.‏

Narrated Abdullah ibn Abbas: The Messenger of Allah (PBUH) performed four umrahs, viz. umrah al-Hudaybiyyah; the second is the one when they (the Companions) were agreed upon performing umrah next year; the third is umrah performed from al-Ji'ranah; the fourth is the one which he combined with his hajj. Translation Not Available

Book Ref: Sunan Abi Dawud Book 11 Hadith 1993
Web Ref:  Sunan Abi Dawud Book 10 Hadith 1988