Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:8743 –

[Machine] "And Abu Abdullah Al-Hafiz, Abu Abdullah Al-Susi, and Abu Abdullah Al-Sulami, all from the hearing of Asil, informed us, they said: Abu Al-Abbas Muhammad ibn Ya'qub informed us, Sa'id ibn Uthman Al-Tanukhi narrated to us, Bashr ibn Bakr narrated to us, Al-Awza'i narrated to me, Yahya ibn Abi Kathir narrated to me, Abu Salama ibn Abdullah ibn Abdul Rahman narrated to me, Ibn Umm Maqil Al-Asadiyyah said: My mother said, 'O Messenger of Allah, I want to perform Hajj but my camel is lame. What do you command me?' Then he said, 'Perform Umrah in Ramadan, for Umrah in Ramadan is equal to Hajj.'"  

البيهقي:٨٧٤٣ –

وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ وَأَبُو عَبْدِ اللهِ السُّوسِيُّ وَأَبُو عَبْدِ الرَّحْمَنِ السُّلَمِيُّ مِنْ أَصْلِ سَمَاعِهِ قَالُوا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا سَعِيدُ بْنُ عُثْمَانَ التَّنُوخِيُّ ثنا بِشْرُ بْنُ بَكْرٍ ثنا الْأَوْزَاعِيُّ حَدَّثَنِي يَحْيَى بْنُ أَبِي كَثِيرٍ حَدَّثَنِي أَبُو سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ حَدَّثَنِي ابْنُ أُمِّ مَعْقِلٍ الْأَسَدِيَّةِ قَالَ قَالَتْ أُمِّي يَا رَسُولَ اللهِ إِنِّي أُرِيدُ الْحَجَّ وَجَمَلِي أَعْجَفُ فَمَا تَأْمُرُنِي فَقَالَ اعْتَمِرِي فِي رَمَضَانَ فَإِنَّ عُمْرَةً فِي رَمَضَانَ كَحَجَّةٍ  

See similar narrations below:

Collected by Bayhaqī
bayhaqi:1649 – Abū ʿAbdullāh al-Ḥāfiẓ And ʾAbū ʿAbdullāh al-Sūsī > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Saʿīd b. ʿUthmān > Bishr b. Bakr > al-Awzāʿī > Yaḥyá b. Abū Kathīr > Abū Salamah Waʿikrimah a freed slave of Ibn ʿAbbās

[Machine] Abu Abdullah Al-Hafiz and Abu Abdullah Al-Susi informed us saying: Abu Abbas Muhammad ibn Ya'qub narrated to us from Saeed ibn Uthman from Bishr ibn Bakr from Al-Awzai from Yahya ibn Abi Kathir who said: Abu Salama and Ikrimah, the slave of Ibn Abbas, narrated to me that Zainab bint Umm Salamah used to perform itikaf (spiritual retreat) with the Messenger of Allah, ﷺ , while she was experiencing menstrual bleeding. The Messenger of Allah, ﷺ , ordered her to perform ghusl (ritual bath) for each prayer. And it has been narrated from another source, different from Ikrimah, regarding this matter.  

البيهقي:١٦٤٩ –

أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ وَأَبُو عَبْدِ اللهِ السُّوسِيُّ قَالَا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا سَعِيدُ بْنُ عُثْمَانَ ثنا بِشْرُ بْنُ بَكْرٍ ثنا الْأَوْزَاعِيُّ ثنا يَحْيَى بْنُ أَبِي كَثِيرٍ قَالَ حَدَّثَنِي أَبُو سَلَمَةَ وَعِكْرِمَةُ مَوْلَى ابْنِ عَبَّاسٍ أَنَّ زَيْنَبَ بِنْتَ أُمِّ سَلَمَةَ كَانَتْ تَعْتَكِفُ مَعَ رَسُولِ اللهِ ﷺ وَهِيَ تَهْرِيقُ الدَّمَ فَأَمَرَهَا رَسُولُ اللهِ ﷺ أَنْ تَغْتَسِلَ لِكُلِّ صَلَاةٍ وَرُوِيَ مِنْ وَجْهٍ آخَرَ عَنْ عِكْرِمَةَ بِخِلَافِ هَذَا