The Messenger of Allah ﷺ intended to perform Hajj, so a woman said to her husband, "Take me to Hajj with the Messenger of Allah ﷺ on your camel."He replied, "I have nothing on which to take you to Hajj."She said, "Take me to Hajj on your camel so-and-so."He said, "That one is reserved for the cause of Allah ."So he came to the Messenger of Allah ﷺ and said, "My wife sends you greetings of peace and the mercy of Allah. She has asked me to take her to Hajj with you. She said, 'Take me to Hajj with the Messenger of Allah ﷺ,' and I said, 'I have nothing on which to take you to Hajj.' Then she said, 'Take me to Hajj on your camel so-and-so,' and I said, 'That one is reserved for the cause of Allah.'"He said, "Had you taken her to Hajj on it, that too would have been in the cause of Allah."The man continued, "She also instructed me to ask you what is equivalent to performing Hajj with you."The Messenger of Allah ﷺ replied, "Convey to her greetings of peace, the mercy of Allah, and His blessings, and inform her that performing Umra in Ramadan is equivalent to performing Hajj with me."
حدثنا مسدد وحدثنا عبد الوارث عن عامر الأحول عن بكر بن عبد الله
أراد رسول الله ﷺ الحج فقالت امرأة لزوجها أحجني مع رسول الله ﷺ على جملك فقال ما عندي ما أحجك عليه قالت أحجني على جملك فلان قال ذاك حبيس في سبيل الله عز وجل فأتى رسول الله ﷺ فقال إن امرأتي تقرأ عليك السلام ورحمة الله وإنها سألتني الحج معك قالت أحجني مع رسول الله ﷺ فقلت ما عندي ما أحجك عليه فقالت أحجني على جملك فلان فقلت ذاك حبيس في سبيل الله فقال أما إنك لو أحججتها عليه كان في سبيل الله قال وإنها أمرتني أن أسألك ما يعدل حجة معك فقال رسول الله ﷺ أقرئها السلام ورحمة الله وبركاته وأخبرها أنها تعدل حجة معي يعني عمرة في رمضان
Takhrij, hasan. Ibn Khuzayma narrated it, hadith no. 3077, from the hadith of Abdul-Warith with this wording, and Hakim graded it sahih, 1/183, 184. Bayhaqi mentioned a flaw in it, 6/164, but I was not able to locate it.