Sahih al-Bukhari, Book 28, Hadith 43 (In-Book) ⓘ

Narrated Ibn `Abbas: When the Prophet returned after performing his Hajj, he asked Um Sinan Al-Ansari, "What did forbid you to perform Hajj?" She replied, "Father of so-and-so (i.e. her husband) had two camels and he performed Hajj on one of them, and the second is used for the irrigation of our land." The Prophet said (to her), "Perform `Umra in the month of Ramadan, (as it is equivalent to Hajj or Hajj with me (in reward).

حَدَّثَنَا عَبْدَانُ، أَخْبَرَنَا يَزِيدُ بْنُ زُرَيْعٍ، أَخْبَرَنَا حَبِيبٌ الْمُعَلِّمُ، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ لَمَّا رَجَعَ النَّبِيُّ صلى الله عليه وسلم مِنْ حَجَّتِهِ قَالَ لأُمِّ سِنَانٍ الأَنْصَارِيَّةِ ‏"‏ مَا مَنَعَكِ مِنَ الْحَجِّ ‏"‏‏.‏ قَالَتْ أَبُو فُلاَنٍ ـ تَعْنِي زَوْجَهَا ـ كَانَ لَهُ نَاضِحَانِ، حَجَّ عَلَى أَحَدِهِمَا، وَالآخَرُ يَسْقِي أَرْضًا لَنَا‏.‏ قَالَ ‏"‏ فَإِنَّ عُمْرَةً فِي رَمَضَانَ تَقْضِي حَجَّةً مَعِي ‏"‏‏.‏ رَوَاهُ ابْنُ جُرَيْجٍ عَنْ عَطَاءٍ سَمِعْتُ ابْنَ عَبَّاسٍ عَنِ النَّبِيِّ صلى الله عليه وسلم‏.‏