When the Prophet ﷺ 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 ﷺ said (to her), "Perform ʿUmra in the month of Ramadan, (as it is equivalent to Hajj or Hajj with me (in reward).  

لَمَّا رَجَعَ النَّبِيُّ ﷺ مِنْ حَجَّتِهِ قَالَ لأُمِّ سِنَانٍ الأَنْصَارِيَّةِ مَا مَنَعَكِ مِنَ الْحَجِّ قَالَتْ أَبُو فُلاَنٍ تَعْنِي زَوْجَهَا 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 ﷺ