Al-Kāfi - Volume 4 > The Months in Which Al-’Umrah Is Preferable and the Case of One Who Assumes the State of Ihram in One Month and Comes Out of Such State in another Month
Hadith #1

1ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ حَمَّادِ بْنِ عُثْمَانَ عَنِ الْوَلِيدِ بْنِ صَبِيحٍ قَالَ قُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ السَّلاَم) بَلَغَنَا أَنَّ عُمْرَةً فِي شَهْرِ رَمَضَانَ تَعْدِلُ حَجَّةً فَقَالَ إِنَّمَا كَانَ ذَلِكَ فِي امْرَأَةٍ وَعَدَهَا رَسُولُ الله (صلَّى اللهُ عَلَيْهِ وَآلِه) فَقَالَ لَهَا اعْتَمِرِي فِي شَهْرِ رَمَضَانَ فَهِيَ لَكِ حَجَّةٌ.

1. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from Hammad ibn ‘Uthman from al-Walid ibn Sabih who has said the following: “I once said to abu ‘Abd Allah, ‘Alayhi al-Salam, ‘It is narrated to us that performing al-‘Umrah in the month of Ramadan is equal to al-Hajj. He (the Imam) said, ‘This was only about a woman to whom the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, had promised saying, “Perform al-‘Umrah in the month of Ramadan; it will be al-Hajj for you.’””